52145328 has 20 divisors (see below), whose sum is σ = 134708888. Its totient is φ = 17381760.

The previous prime is 52145323. The next prime is 52145333. The reversal of 52145328 is 82354125.

52145328 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 (52145323) and next prime (52145333).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 52145295 and 52145304.

It is not an unprimeable number, because it can be changed into a prime (52145323) 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 3 ways as a sum of consecutive naturals, for example, 543133 + ... + 543228.

Almost surely, 2^52145328 is an apocalyptic number.

It is an amenable number.

52145328 is an abundant number, since it is smaller than the sum of its proper divisors (82563560).

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

52145328 is a wasteful number, since it uses less digits than its factorization.

52145328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086372 (or 1086366 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 52145328 is about 7221.1722040123. The cubic root of 52145328 is about 373.5985091654.

The spelling of 52145328 in words is "fifty-two million, one hundred forty-five thousand, three hundred twenty-eight".