2551145523 has 16 divisors (see below), whose sum is σ = 3677329920. Its totient is φ = 1567701216.

The previous prime is 2551145521. The next prime is 2551145543. The reversal of 2551145523 is 3255411552.

It is not a de Polignac number, because 2551145523 - 2¹ = 2551145521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2551145521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 602715 + ... + 606932.

It is an arithmetic number, because the mean of its divisors is an integer number (229833120).

Almost surely, 2^2551145523 is an apocalyptic number.

2551145523 is a deficient number, since it is larger than the sum of its proper divisors (1126184397).

2551145523 is a wasteful number, since it uses less digits than its factorization.

2551145523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1209706.

The product of its digits is 30000, while the sum is 33.

The square root of 2551145523 is about 50508.8657861172. The cubic root of 2551145523 is about 1366.4017539343.

The spelling of 2551145523 in words is "two billion, five hundred fifty-one million, one hundred forty-five thousand, five hundred twenty-three".