253176828 has 12 divisors (see below), whose sum is σ = 590745960. Its totient is φ = 84392272.

The previous prime is 253176823. The next prime is 253176851. The reversal of 253176828 is 828671352.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×253176828² = 128197012472283168, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 253176828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253176823) 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, 10549023 + ... + 10549046.

It is an arithmetic number, because the mean of its divisors is an integer number (49228830).

Almost surely, 2^253176828 is an apocalyptic number.

It is an amenable number.

253176828 is an abundant number, since it is smaller than the sum of its proper divisors (337569132).

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

253176828 is a wasteful number, since it uses less digits than its factorization.

253176828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21098076 (or 21098074 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 253176828 is about 15911.5312902310. The cubic root of 253176828 is about 632.6176697862.

The spelling of 253176828 in words is "two hundred fifty-three million, one hundred seventy-six thousand, eight hundred twenty-eight".