125624891855 has 8 divisors (see below), whose sum is σ = 150833584464. Its totient is φ = 100444104000.

The previous prime is 125624891813. The next prime is 125624891863. The reversal of 125624891855 is 558198426521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125624891855 - 2⁸ = 125624891599 is a prime.

It is a super-2 number, since 2×125624891855² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125624891855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6966281 + ... + 6984290.

It is an arithmetic number, because the mean of its divisors is an integer number (18854198058).

Almost surely, 2^125624891855 is an apocalyptic number.

125624891855 is a deficient number, since it is larger than the sum of its proper divisors (25208692609).

125624891855 is a wasteful number, since it uses less digits than its factorization.

125624891855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13952377.

The product of its digits is 6912000, while the sum is 56.

The spelling of 125624891855 in words is "one hundred twenty-five billion, six hundred twenty-four million, eight hundred ninety-one thousand, eight hundred fifty-five".