253255428 has 36 divisors (see below), whose sum is σ = 641445168. Its totient is φ = 84250800.

The previous prime is 253255397. The next prime is 253255439. The reversal of 253255428 is 824552352.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×253255428² = 128276623622926368, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 253255392 and 253255401.

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 11 ways as a sum of consecutive naturals, for example, 12103 + ... + 25553.

Almost surely, 2^253255428 is an apocalyptic number.

It is an amenable number.

253255428 is an abundant number, since it is smaller than the sum of its proper divisors (388189740).

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

253255428 is a wasteful number, since it uses less digits than its factorization.

253255428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13984 (or 13979 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

The square root of 253255428 is about 15914.0010054040. The cubic root of 253255428 is about 632.6831294421.

The spelling of 253255428 in words is "two hundred fifty-three million, two hundred fifty-five thousand, four hundred twenty-eight".