253025856 has 70 divisors (see below), whose sum is σ = 750063270. Its totient is φ = 84340224.

The previous prime is 253025837. The next prime is 253025867. The reversal of 253025856 is 658520352.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 201185856 + 51840000 = 14184^2 + 7200^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 253025856.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 19221 + ... + 29588.

Almost surely, 2^253025856 is an apocalyptic number.

It is an amenable number.

253025856 is an abundant number, since it is smaller than the sum of its proper divisors (497037414).

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

253025856 is an equidigital number, since it uses as much as digits as its factorization.

253025856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48833 (or 48814 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 253025856 is about 15906.7864762183. The cubic root of 253025856 is about 632.4918992646.

The spelling of 253025856 in words is "two hundred fifty-three million, twenty-five thousand, eight hundred fifty-six".