275129025 has 24 divisors (see below), whose sum is σ = 478823520. Its totient is φ = 139011840.

The previous prime is 275129009. The next prime is 275129033. The reversal of 275129025 is 520921572.

It is a happy number.

It is not a de Polignac number, because 275129025 - 2⁴ = 275129009 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95112 + ... + 97961.

It is an arithmetic number, because the mean of its divisors is an integer number (19950980).

Almost surely, 2^275129025 is an apocalyptic number.

275129025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

275129025 is a deficient number, since it is larger than the sum of its proper divisors (203694495).

275129025 is a wasteful number, since it uses less digits than its factorization.

275129025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193105 (or 193100 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 275129025 is about 16587.0137456988. The cubic root of 275129025 is about 650.3974098342.

The spelling of 275129025 in words is "two hundred seventy-five million, one hundred twenty-nine thousand, twenty-five".