125315566 has 8 divisors (see below), whose sum is σ = 188025480. Its totient is φ = 62640408.

The previous prime is 125315543. The next prime is 125315579. The reversal of 125315566 is 665513521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 4080 + ... + 16348.

It is an arithmetic number, because the mean of its divisors is an integer number (23503185).

Almost surely, 2^125315566 is an apocalyptic number.

125315566 is a deficient number, since it is larger than the sum of its proper divisors (62709914).

125315566 is a wasteful number, since it uses less digits than its factorization.

125315566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17378.

The product of its digits is 27000, while the sum is 34.

The square root of 125315566 is about 11194.4435323959. The cubic root of 125315566 is about 500.4204010934.

The spelling of 125315566 in words is "one hundred twenty-five million, three hundred fifteen thousand, five hundred sixty-six".