253460656 has 20 divisors (see below), whose sum is σ = 504353632. Its totient is φ = 123304896.

The previous prime is 253460593. The next prime is 253460659. The reversal of 253460656 is 656064352.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (253460659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213480 + ... + 214663.

Almost surely, 2^253460656 is an apocalyptic number.

It is an amenable number.

253460656 is a deficient number, since it is larger than the sum of its proper divisors (250892976).

253460656 is a wasteful number, since it uses less digits than its factorization.

253460656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428188 (or 428182 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 37.

The square root of 253460656 is about 15920.4477323975. The cubic root of 253460656 is about 632.8539836090.

It can be divided in two parts, 2534 and 60656, that added together give a triangular number (63190 = T₃₅₅).

The spelling of 253460656 in words is "two hundred fifty-three million, four hundred sixty thousand, six hundred fifty-six".