2551590439545 has 32 divisors (see below), whose sum is σ = 4665829588992. Its totient is φ = 1166425290432.

The previous prime is 2551590439537. The next prime is 2551590439603. The reversal of 2551590439545 is 5459340951552.

It is not a de Polignac number, because 2551590439545 - 2³ = 2551590439537 is a prime.

It is a super-2 number, since 2×2551590439545² (a number of 26 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11089944 + ... + 11317686.

It is an arithmetic number, because the mean of its divisors is an integer number (145807174656).

Almost surely, 2^{2551590439545} is an apocalyptic number.

It is an amenable number.

2551590439545 is a deficient number, since it is larger than the sum of its proper divisors (2114239149447).

2551590439545 is a wasteful number, since it uses less digits than its factorization.

2551590439545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334461.

The product of its (nonzero) digits is 24300000, while the sum is 57.

The spelling of 2551590439545 in words is "two trillion, five hundred fifty-one billion, five hundred ninety million, four hundred thirty-nine thousand, five hundred forty-five".