125561604 has 24 divisors (see below), whose sum is σ = 334831168. Its totient is φ = 35874720.

The previous prime is 125561599. The next prime is 125561621. The reversal of 125561604 is 406165521.

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, 747307 + ... + 747474.

Almost surely, 2^125561604 is an apocalyptic number.

125561604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

125561604 is an abundant number, since it is smaller than the sum of its proper divisors (209269564).

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

125561604 is a wasteful number, since it uses less digits than its factorization.

125561604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494795 (or 1494793 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 125561604 is about 11205.4274349531. The cubic root of 125561604 is about 500.7476867052.

The spelling of 125561604 in words is "one hundred twenty-five million, five hundred sixty-one thousand, six hundred four".