52405630 has 16 divisors (see below), whose sum is σ = 94675680. Its totient is φ = 20885472.

The previous prime is 52405627. The next prime is 52405631. The reversal of 52405630 is 3650425.

It is a junction number, because it is equal to n+sod(n) for n = 52405595 and 52405604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52405631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6690 + ... + 12229.

It is an arithmetic number, because the mean of its divisors is an integer number (5917230).

Almost surely, 2^52405630 is an apocalyptic number.

52405630 is a deficient number, since it is larger than the sum of its proper divisors (42270050).

52405630 is a wasteful number, since it uses less digits than its factorization.

52405630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19203.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 52405630 is about 7239.1732953425. The cubic root of 52405630 is about 374.2191276904.

It can be divided in two parts, 52405 and 630, that added together give a palindrome (53035).

The spelling of 52405630 in words is "fifty-two million, four hundred five thousand, six hundred thirty".