53257256 has 32 divisors (see below), whose sum is σ = 111014400. Its totient is φ = 23785920.

The previous prime is 53257249. The next prime is 53257261. The reversal of 53257256 is 65275235.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5036 + ... + 11483.

It is an arithmetic number, because the mean of its divisors is an integer number (3469200).

Almost surely, 2^53257256 is an apocalyptic number.

It is an amenable number.

53257256 is an abundant number, since it is smaller than the sum of its proper divisors (57757144).

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

53257256 is a wasteful number, since it uses less digits than its factorization.

53257256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16569 (or 16565 counting only the distinct ones).

The product of its digits is 63000, while the sum is 35.

The square root of 53257256 is about 7297.7569156557. The cubic root of 53257256 is about 376.2353476044.

The spelling of 53257256 in words is "fifty-three million, two hundred fifty-seven thousand, two hundred fifty-six".