253245656 has 16 divisors (see below), whose sum is σ = 479039400. Its totient is φ = 125501824.

The previous prime is 253245631. The next prime is 253245659. The reversal of 253245656 is 656542352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253245659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139166 + ... + 140973.

Almost surely, 2^253245656 is an apocalyptic number.

It is an amenable number.

253245656 is a deficient number, since it is larger than the sum of its proper divisors (225793744).

253245656 is a wasteful number, since it uses less digits than its factorization.

253245656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280258 (or 280254 counting only the distinct ones).

The product of its digits is 216000, while the sum is 38.

The square root of 253245656 is about 15913.6939772009. The cubic root of 253245656 is about 632.6749918619.

The spelling of 253245656 in words is "two hundred fifty-three million, two hundred forty-five thousand, six hundred fifty-six".