2528566623 has 12 divisors (see below), whose sum is σ = 3984408168. Its totient is φ = 1532464560.

The previous prime is 2528566603. The next prime is 2528566639. The reversal of 2528566623 is 3266658252.

It is not a de Polignac number, because 2528566623 - 2⁵ = 2528566591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2528566603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12770440 + ... + 12770637.

It is an arithmetic number, because the mean of its divisors is an integer number (332034014).

Almost surely, 2^2528566623 is an apocalyptic number.

2528566623 is a deficient number, since it is larger than the sum of its proper divisors (1455841545).

2528566623 is a wasteful number, since it uses less digits than its factorization.

2528566623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25541094 (or 25541091 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 45.

The square root of 2528566623 is about 50284.8548073871. The cubic root of 2528566623 is about 1362.3586921656.

The spelling of 2528566623 in words is "two billion, five hundred twenty-eight million, five hundred sixty-six thousand, six hundred twenty-three".