276640825 has 12 divisors (see below), whose sum is σ = 350334720. Its totient is φ = 216602960.

The previous prime is 276640811. The next prime is 276640877. The reversal of 276640825 is 528046672.

It is not a de Polignac number, because 276640825 - 2⁷ = 276640697 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116545 + ... + 118894.

It is an arithmetic number, because the mean of its divisors is an integer number (29194560).

Almost surely, 2^276640825 is an apocalyptic number.

276640825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

276640825 is a deficient number, since it is larger than the sum of its proper divisors (73693895).

276640825 is a wasteful number, since it uses less digits than its factorization.

276640825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235496 (or 235491 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 276640825 is about 16632.5231098592. The cubic root of 276640825 is about 651.5865189538.

The spelling of 276640825 in words is "two hundred seventy-six million, six hundred forty thousand, eight hundred twenty-five".