2551616520450 has 24 divisors (see below), whose sum is σ = 6328008971088. Its totient is φ = 680431072080.

The previous prime is 2551616520433. The next prime is 2551616520469. The reversal of 2551616520450 is 540256161552.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8505388252 + ... + 8505388551.

It is an arithmetic number, because the mean of its divisors is an integer number (263667040462).

Almost surely, 2^{2551616520450} is an apocalyptic number.

2551616520450 is an abundant number, since it is smaller than the sum of its proper divisors (3776392450638).

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

2551616520450 is a wasteful number, since it uses less digits than its factorization.

2551616520450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17010776818 (or 17010776813 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 42.

The spelling of 2551616520450 in words is "two trillion, five hundred fifty-one billion, six hundred sixteen million, five hundred twenty thousand, four hundred fifty".