53390256 has 40 divisors (see below), whose sum is σ = 139276800. Its totient is φ = 17622336.

The previous prime is 53390231. The next prime is 53390257. The reversal of 53390256 is 65209335.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53390257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456 + ... + 10343.

It is an arithmetic number, because the mean of its divisors is an integer number (3481920).

Almost surely, 2^53390256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53390256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69638400).

53390256 is an abundant number, since it is smaller than the sum of its proper divisors (85886544).

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

53390256 is a wasteful number, since it uses less digits than its factorization.

53390256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10913 (or 10907 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 33.

The square root of 53390256 is about 7306.8636226496. The cubic root of 53390256 is about 376.5482796384.

The spelling of 53390256 in words is "fifty-three million, three hundred ninety thousand, two hundred fifty-six".