53256402 has 24 divisors (see below), whose sum is σ = 115672284. Its totient is φ = 17708544.

The previous prime is 53256323. The next prime is 53256433. The reversal of 53256402 is 20465235.

53256402 is a `hidden beast` number, since 5 + 3 + 256 + 402 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 43837641 + 9418761 = 6621^2 + 3069^2 .

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 11 ways as a sum of consecutive naturals, for example, 4378 + ... + 11210.

Almost surely, 2^53256402 is an apocalyptic number.

53256402 is an abundant number, since it is smaller than the sum of its proper divisors (62415882).

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

53256402 is a wasteful number, since it uses less digits than its factorization.

53256402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7274 (or 7271 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 53256402 is about 7297.6984042916. The cubic root of 53256402 is about 376.2333365688.

The spelling of 53256402 in words is "fifty-three million, two hundred fifty-six thousand, four hundred two".