125153351550 has 72 divisors (see below), whose sum is σ = 336306204936. Its totient is φ = 33368185920.

The previous prime is 125153351513. The next prime is 125153351627. The reversal of 125153351550 is 55153351521.

125153351550 is a `hidden beast` number, since 1 + 2 + 5 + 1 + 53 + 3 + 51 + 550 = 666.

It is a super-2 number, since 2×125153351550² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2820637 + ... + 2864663.

It is an arithmetic number, because the mean of its divisors is an integer number (4670919513).

Almost surely, 2^125153351550 is an apocalyptic number.

125153351550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125153351550 is an abundant number, since it is smaller than the sum of its proper divisors (211152853386).

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

125153351550 is a wasteful number, since it uses less digits than its factorization.

125153351550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50362 (or 50354 counting only the distinct ones).

The product of its (nonzero) digits is 56250, while the sum is 36.

The spelling of 125153351550 in words is "one hundred twenty-five billion, one hundred fifty-three million, three hundred fifty-one thousand, five hundred fifty".