276390625 has 63 divisors (see below), whose sum is σ = 424154727. Its totient is φ = 179550000.

The previous prime is 276390617. The next prime is 276390659. The reversal of 276390625 is 526093672.

The square root of 276390625 is 16625.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 3 ways, for example, as 242144721 + 34245904 = 15561^2 + 5852^2 .

It is not a de Polignac number, because 276390625 - 2³ = 276390617 is a prime.

It is an unprimeable number.

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 62 ways as a sum of consecutive naturals, for example, 14546866 + ... + 14546884.

Almost surely, 2^276390625 is an apocalyptic number.

276390625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

276390625 is the 16625-th square number.

276390625 is the 8313-rd centered octagonal number.

It is an amenable number.

276390625 is a deficient number, since it is larger than the sum of its proper divisors (147764102).

276390625 is an frugal number, since it uses more digits than its factorization.

276390625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82 (or 31 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 40.

The cubic root of 276390625 is about 651.3900233473.

The spelling of 276390625 in words is "two hundred seventy-six million, three hundred ninety thousand, six hundred twenty-five".