125019564 has 24 divisors (see below), whose sum is σ = 308872368. Its totient is φ = 39221760.

The previous prime is 125019553. The next prime is 125019599. The reversal of 125019564 is 465910521.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306217 + ... + 306624.

It is an arithmetic number, because the mean of its divisors is an integer number (12869682).

Almost surely, 2^125019564 is an apocalyptic number.

It is an amenable number.

125019564 is an abundant number, since it is smaller than the sum of its proper divisors (183852804).

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

125019564 is a wasteful number, since it uses less digits than its factorization.

125019564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612865 (or 612863 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 125019564 is about 11181.2147819457. The cubic root of 125019564 is about 500.0260839726.

The spelling of 125019564 in words is "one hundred twenty-five million, nineteen thousand, five hundred sixty-four".