275557825 has 12 divisors (see below), whose sum is σ = 356548608. Its totient is φ = 210861200.

The previous prime is 275557787. The next prime is 275557829. The reversal of 275557825 is 528755572.

It is a de Polignac number, because none of the positive numbers 2^k-275557825 is a prime.

It is a super-2 number, since 2×275557825² = 151864229837461250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (275557829) by changing a digit.

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, 239041 + ... + 240190.

It is an arithmetic number, because the mean of its divisors is an integer number (29712384).

Almost surely, 2^275557825 is an apocalyptic number.

275557825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

275557825 is a deficient number, since it is larger than the sum of its proper divisors (80990783).

275557825 is a wasteful number, since it uses less digits than its factorization.

275557825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479264 (or 479259 counting only the distinct ones).

The product of its digits is 980000, while the sum is 46.

The square root of 275557825 is about 16599.9344878225. The cubic root of 275557825 is about 650.7351248962.

The spelling of 275557825 in words is "two hundred seventy-five million, five hundred fifty-seven thousand, eight hundred twenty-five".