125504050564540 has 24 divisors (see below), whose sum is σ = 264719556883152. Its totient is φ = 49980467712000.

The previous prime is 125504050564531. The next prime is 125504050564547. The reversal of 125504050564540 is 45465050405521.

It is a super-2 number, since 2×125504050564540² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125504050564547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13822027461 + ... + 13822036540.

It is an arithmetic number, because the mean of its divisors is an integer number (11029981536798).

Almost surely, 2^{125504050564540} is an apocalyptic number.

125504050564540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125504050564540 is an abundant number, since it is smaller than the sum of its proper divisors (139215506318612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125504050564540 is a wasteful number, since it uses less digits than its factorization.

125504050564540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27644064237 (or 27644064235 counting only the distinct ones).

The product of its (nonzero) digits is 2400000, while the sum is 46.

The spelling of 125504050564540 in words is "one hundred twenty-five trillion, five hundred four billion, fifty million, five hundred sixty-four thousand, five hundred forty".