125221524 has 48 divisors (see below), whose sum is σ = 319366656. Its totient is φ = 38016000.

The previous prime is 125221513. The next prime is 125221531. The reversal of 125221524 is 425122521.

It is a junction number, because it is equal to n+sod(n) for n = 125221494 and 125221503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3577 + ... + 16224.

It is an arithmetic number, because the mean of its divisors is an integer number (6653472).

Almost surely, 2^125221524 is an apocalyptic number.

It is an amenable number.

125221524 is an abundant number, since it is smaller than the sum of its proper divisors (194145132).

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

125221524 is a wasteful number, since it uses less digits than its factorization.

125221524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19856 (or 19854 counting only the distinct ones).

The product of its digits is 1600, while the sum is 24.

The square root of 125221524 is about 11190.2423566248. The cubic root of 125221524 is about 500.2951910236.

The spelling of 125221524 in words is "one hundred twenty-five million, two hundred twenty-one thousand, five hundred twenty-four".