125003656 has 16 divisors (see below), whose sum is σ = 241943040. Its totient is φ = 60485520.

The previous prime is 125003639. The next prime is 125003677. The reversal of 125003656 is 656300521.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251776 + ... + 252271.

It is an arithmetic number, because the mean of its divisors is an integer number (15121440).

Almost surely, 2^125003656 is an apocalyptic number.

It is an amenable number.

125003656 is a deficient number, since it is larger than the sum of its proper divisors (116939384).

125003656 is a wasteful number, since it uses less digits than its factorization.

125003656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504084 (or 504080 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 125003656 is about 11180.5033875940. The cubic root of 125003656 is about 500.0048746191.

The spelling of 125003656 in words is "one hundred twenty-five million, three thousand, six hundred fifty-six".