52512428 has 12 divisors (see below), whose sum is σ = 96733560. Its totient is φ = 24874272.

The previous prime is 52512407. The next prime is 52512457. The reversal of 52512428 is 82421525.

It is a self number, because there is not a number n which added to its sum of digits gives 52512428.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345401 + ... + 345552.

It is an arithmetic number, because the mean of its divisors is an integer number (8061130).

Almost surely, 2^52512428 is an apocalyptic number.

It is an amenable number.

52512428 is a deficient number, since it is larger than the sum of its proper divisors (44221132).

52512428 is a wasteful number, since it uses less digits than its factorization.

52512428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690976 (or 690974 counting only the distinct ones).

The product of its digits is 6400, while the sum is 29.

The square root of 52512428 is about 7246.5459358235. The cubic root of 52512428 is about 374.4731636031.

The spelling of 52512428 in words is "fifty-two million, five hundred twelve thousand, four hundred twenty-eight".