125266272504 has 64 divisors (see below), whose sum is σ = 320676935040. Its totient is φ = 40755308160.

The previous prime is 125266272493. The next prime is 125266272557. The reversal of 125266272504 is 405272662521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1430134 + ... + 1515194.

It is an arithmetic number, because the mean of its divisors is an integer number (5010577110).

Almost surely, 2^125266272504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125266272504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160338467520).

125266272504 is an abundant number, since it is smaller than the sum of its proper divisors (195410662536).

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

125266272504 is a wasteful number, since it uses less digits than its factorization.

125266272504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86540 (or 86536 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 42.

The spelling of 125266272504 in words is "one hundred twenty-five billion, two hundred sixty-six million, two hundred seventy-two thousand, five hundred four".