53256538 has 8 divisors (see below), whose sum is σ = 81194580. Its totient is φ = 26191680.

The previous prime is 53256503. The next prime is 53256547. The reversal of 53256538 is 83565235.

It can be written as a sum of positive squares in 2 ways, for example, as 50027329 + 3229209 = 7073^2 + 1797^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 53256497 and 53256506.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218143 + ... + 218386.

Almost surely, 2^53256538 is an apocalyptic number.

53256538 is a deficient number, since it is larger than the sum of its proper divisors (27938042).

53256538 is a wasteful number, since it uses less digits than its factorization.

53256538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436592.

The product of its digits is 108000, while the sum is 37.

The square root of 53256538 is about 7297.7077222920. The cubic root of 53256538 is about 376.2336568288.

The spelling of 53256538 in words is "fifty-three million, two hundred fifty-six thousand, five hundred thirty-eight".