52590402 has 12 divisors (see below), whose sum is σ = 113945910. Its totient is φ = 17530128.

The previous prime is 52590371. The next prime is 52590407. The reversal of 52590402 is 20409525.

52590402 is a `hidden beast` number, since 5 + 259 + 0 + 402 = 666.

It can be written as a sum of positive squares in only one way, i.e., 52142841 + 447561 = 7221^2 + 669^2 .

It is not an unprimeable number, because it can be changed into a prime (52590407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1460827 + ... + 1460862.

Almost surely, 2^52590402 is an apocalyptic number.

52590402 is an abundant number, since it is smaller than the sum of its proper divisors (61355508).

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

52590402 is a wasteful number, since it uses less digits than its factorization.

52590402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2921697 (or 2921694 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 52590402 is about 7251.9240205617. The cubic root of 52590402 is about 374.6584196221.

Adding to 52590402 its reverse (20409525), we get a palindrome (72999927).

The spelling of 52590402 in words is "fifty-two million, five hundred ninety thousand, four hundred two".