125051023550 has 12 divisors (see below), whose sum is σ = 232594903896. Its totient is φ = 50020409400.

The previous prime is 125051023549. The next prime is 125051023553. The reversal of 125051023550 is 55320150521.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125051023553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1250510186 + ... + 1250510285.

It is an arithmetic number, because the mean of its divisors is an integer number (19382908658).

Almost surely, 2^125051023550 is an apocalyptic number.

125051023550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125051023550 is a deficient number, since it is larger than the sum of its proper divisors (107543880346).

125051023550 is a wasteful number, since it uses less digits than its factorization.

125051023550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2501020483 (or 2501020478 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 29.

The spelling of 125051023550 in words is "one hundred twenty-five billion, fifty-one million, twenty-three thousand, five hundred fifty".