2521051551231 has 64 divisors (see below), whose sum is σ = 3668017920000. Its totient is φ = 1535129304192.

The previous prime is 2521051551181. The next prime is 2521051551311. The reversal of 2521051551231 is 1321551501252.

It is not a de Polignac number, because 2521051551231 - 2²³ = 2521043162623 is a prime.

It is a super-2 number, since 2×2521051551231² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2521051551192 and 2521051551201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521051551331) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 51574080 + ... + 51622938.

It is an arithmetic number, because the mean of its divisors is an integer number (57312780000).

Almost surely, 2^{2521051551231} is an apocalyptic number.

2521051551231 is a deficient number, since it is larger than the sum of its proper divisors (1146966368769).

2521051551231 is a wasteful number, since it uses less digits than its factorization.

2521051551231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49236.

The product of its (nonzero) digits is 15000, while the sum is 33.

The spelling of 2521051551231 in words is "two trillion, five hundred twenty-one billion, fifty-one million, five hundred fifty-one thousand, two hundred thirty-one".