125145650520 has 192 divisors, whose sum is σ = 462989779200. Its totient is φ = 29019260160.

The previous prime is 125145650503. The next prime is 125145650527. The reversal of 125145650520 is 25056541521.

125145650520 is a `hidden beast` number, since 1 + 2 + 5 + 145 + 6 + 505 + 2 + 0 = 666.

It is a super-2 number, since 2×125145650520² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125145650527) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 595930 + ... + 778089.

It is an arithmetic number, because the mean of its divisors is an integer number (2411405100).

Almost surely, 2^125145650520 is an apocalyptic number.

125145650520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125145650520 is an abundant number, since it is smaller than the sum of its proper divisors (337844128680).

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

125145650520 is a wasteful number, since it uses less digits than its factorization.

125145650520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374070 (or 1374063 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The spelling of 125145650520 in words is "one hundred twenty-five billion, one hundred forty-five million, six hundred fifty thousand, five hundred twenty".