52539630 has 128 divisors (see below), whose sum is σ = 152603136. Its totient is φ = 11404800.

The previous prime is 52539629. The next prime is 52539631. The reversal of 52539630 is 3693525.

52539630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (52539629) and next prime (52539631).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 52539591 and 52539600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52539631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 158565 + ... + 158895.

It is an arithmetic number, because the mean of its divisors is an integer number (1192212).

Almost surely, 2^52539630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52539630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76301568).

52539630 is an abundant number, since it is smaller than the sum of its proper divisors (100063506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52539630 is a wasteful number, since it uses less digits than its factorization.

52539630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402.

The product of its (nonzero) digits is 24300, while the sum is 33.

The square root of 52539630 is about 7248.4225870185. The cubic root of 52539630 is about 374.5378128109.

The spelling of 52539630 in words is "fifty-two million, five hundred thirty-nine thousand, six hundred thirty".