2502561249956 has 24 divisors (see below), whose sum is σ = 4387204224480. Its totient is φ = 1249075123200.

The previous prime is 2502561249899. The next prime is 2502561249971. The reversal of 2502561249956 is 6599421652052.

It is a happy number.

It is a super-2 number, since 2×2502561249956² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12874811 + ... + 13067741.

It is an arithmetic number, because the mean of its divisors is an integer number (182800176020).

Almost surely, 2^{2502561249956} is an apocalyptic number.

It is an amenable number.

2502561249956 is a deficient number, since it is larger than the sum of its proper divisors (1884642974524).

2502561249956 is a wasteful number, since it uses less digits than its factorization.

2502561249956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198635 (or 198633 counting only the distinct ones).

The product of its (nonzero) digits is 11664000, while the sum is 56.

The spelling of 2502561249956 in words is "two trillion, five hundred two billion, five hundred sixty-one million, two hundred forty-nine thousand, nine hundred fifty-six".