2560513531 has 16 divisors (see below), whose sum is σ = 2745246816. Its totient is φ = 2379718656.

The previous prime is 2560513513. The next prime is 2560513537. The reversal of 2560513531 is 1353150652.

It is a cyclic number.

It is not a de Polignac number, because 2560513531 - 2¹¹ = 2560511483 is a prime.

It is a super-2 number, since 2×2560513531² = 13112459084868175922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2560513493 and 2560513502.

It is not an unprimeable number, because it can be changed into a prime (2560513537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 610915 + ... + 615091.

It is an arithmetic number, because the mean of its divisors is an integer number (171577926).

Almost surely, 2^2560513531 is an apocalyptic number.

2560513531 is a deficient number, since it is larger than the sum of its proper divisors (184733285).

2560513531 is a wasteful number, since it uses less digits than its factorization.

2560513531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4638.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 2560513531 is about 50601.5170820006. The cubic root of 2560513531 is about 1368.0722226484.

The spelling of 2560513531 in words is "two billion, five hundred sixty million, five hundred thirteen thousand, five hundred thirty-one".