253172125 has 8 divisors (see below), whose sum is σ = 315958968. Its totient is φ = 202537600.

The previous prime is 253172119. The next prime is 253172191. The reversal of 253172125 is 521271352.

It can be written as a sum of positive squares in 4 ways, for example, as 3437316 + 249734809 = 1854^2 + 15803^2 .

It is not a de Polignac number, because 253172125 - 2¹¹ = 253170077 is a prime.

It is a super-2 number, since 2×253172125² = 128192249754031250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 253172093 and 253172102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1012564 + ... + 1012813.

It is an arithmetic number, because the mean of its divisors is an integer number (39494871).

Almost surely, 2^253172125 is an apocalyptic number.

253172125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

253172125 is a deficient number, since it is larger than the sum of its proper divisors (62786843).

253172125 is an equidigital number, since it uses as much as digits as its factorization.

253172125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025392 (or 2025382 counting only the distinct ones).

The product of its digits is 4200, while the sum is 28.

The square root of 253172125 is about 15911.3835036429. The cubic root of 253172125 is about 632.6137526040.

The spelling of 253172125 in words is "two hundred fifty-three million, one hundred seventy-two thousand, one hundred twenty-five".