2560488653540 has 24 divisors (see below), whose sum is σ = 5693321830392. Its totient is φ = 963948669440.

The previous prime is 2560488653497. The next prime is 2560488653543. The reversal of 2560488653540 is 453568840652.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1419591229156 + 1140897424384 = 1191466^2 + 1068128^2 .

It is a super-2 number, since 2×2560488653540² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2560488653543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3765424151 + ... + 3765424830.

It is an arithmetic number, because the mean of its divisors is an integer number (237221742933).

Almost surely, 2^{2560488653540} is an apocalyptic number.

2560488653540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2560488653540 is an abundant number, since it is smaller than the sum of its proper divisors (3132833176852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2560488653540 is a wasteful number, since it uses less digits than its factorization.

2560488653540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7530849007 (or 7530849005 counting only the distinct ones).

The product of its (nonzero) digits is 27648000, while the sum is 56.

The spelling of 2560488653540 in words is "two trillion, five hundred sixty billion, four hundred eighty-eight million, six hundred fifty-three thousand, five hundred forty".