276520027725 has 18 divisors (see below), whose sum is σ = 495278094506. Its totient is φ = 147477348000.

The previous prime is 276520027709. The next prime is 276520027733. The reversal of 276520027725 is 527720025672.

It can be written as a sum of positive squares in 3 ways, for example, as 16646418441 + 259873609284 = 129021^2 + 509778^2 .

It is not a de Polignac number, because 276520027725 - 2⁴ = 276520027709 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 614488726 + ... + 614489175.

Almost surely, 2^276520027725 is an apocalyptic number.

276520027725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

276520027725 is a deficient number, since it is larger than the sum of its proper divisors (218758066781).

276520027725 is a wasteful number, since it uses less digits than its factorization.

276520027725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228977917 (or 1228977909 counting only the distinct ones).

The product of its (nonzero) digits is 823200, while the sum is 45.

The spelling of 276520027725 in words is "two hundred seventy-six billion, five hundred twenty million, twenty-seven thousand, seven hundred twenty-five".