125515089880 has 32 divisors (see below), whose sum is σ = 282500654400. Its totient is φ = 50189733376.

The previous prime is 125515089871. The next prime is 125515089881. The reversal of 125515089880 is 88980515521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125515089881) 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, 384352 + ... + 631471.

It is an arithmetic number, because the mean of its divisors is an integer number (8828145450).

Almost surely, 2^125515089880 is an apocalyptic number.

125515089880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125515089880 is an abundant number, since it is smaller than the sum of its proper divisors (156985564520).

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

125515089880 is a wasteful number, since it uses less digits than its factorization.

125515089880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018923 (or 1018919 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 52.

The spelling of 125515089880 in words is "one hundred twenty-five billion, five hundred fifteen million, eighty-nine thousand, eight hundred eighty".