123003551455525 has 48 divisors (see below), whose sum is σ = 166806100382544. Its totient is φ = 89428247009280.

The previous prime is 123003551455517. The next prime is 123003551455553. The reversal of 123003551455525 is 525554155300321.

It can be written as a sum of positive squares in 24 ways, for example, as 94249011325249 + 28754540130276 = 9708193^2 + 5362326^2 .

It is not a de Polignac number, because 123003551455525 - 2³ = 123003551455517 is a prime.

It is a super-5 number, since 5×123003551455525⁵ (a number of 72 digits) contains 55555 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8560827 + ... + 17868823.

It is an arithmetic number, because the mean of its divisors is an integer number (3475127091303).

Almost surely, 2^{123003551455525} is an apocalyptic number.

It is an amenable number.

123003551455525 is a deficient number, since it is larger than the sum of its proper divisors (43802548927019).

123003551455525 is a wasteful number, since it uses less digits than its factorization.

123003551455525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9308650 (or 9308645 counting only the distinct ones).

The product of its (nonzero) digits is 2250000, while the sum is 46.

The spelling of 123003551455525 in words is "one hundred twenty-three trillion, three billion, five hundred fifty-one million, four hundred fifty-five thousand, five hundred twenty-five".