253885172 has 24 divisors (see below), whose sum is σ = 452491872. Its totient is φ = 124610400.

The previous prime is 253885139. The next prime is 253885183. The reversal of 253885172 is 271588352.

It is a super-2 number, since 2×253885172² = 128915361122939168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197243 + ... + 198525.

It is an arithmetic number, because the mean of its divisors is an integer number (18853828).

Almost surely, 2^253885172 is an apocalyptic number.

It is an amenable number.

253885172 is a deficient number, since it is larger than the sum of its proper divisors (198606700).

253885172 is a wasteful number, since it uses less digits than its factorization.

253885172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159 (or 2157 counting only the distinct ones).

The product of its digits is 134400, while the sum is 41.

The square root of 253885172 is about 15933.7745685070. The cubic root of 253885172 is about 633.2071045446.

The spelling of 253885172 in words is "two hundred fifty-three million, eight hundred eighty-five thousand, one hundred seventy-two".