125715256 has 8 divisors (see below), whose sum is σ = 235716120. Its totient is φ = 62857624.

The previous prime is 125715241. The next prime is 125715257. The reversal of 125715256 is 652517521.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×125715256² = 31608651182291072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125715257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7857196 + ... + 7857211.

It is an arithmetic number, because the mean of its divisors is an integer number (29464515).

Almost surely, 2^125715256 is an apocalyptic number.

It is an amenable number.

125715256 is a deficient number, since it is larger than the sum of its proper divisors (110000864).

125715256 is a wasteful number, since it uses less digits than its factorization.

125715256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15714413 (or 15714409 counting only the distinct ones).

The product of its digits is 21000, while the sum is 34.

The square root of 125715256 is about 11212.2814805908. The cubic root of 125715256 is about 500.9518614364.

The spelling of 125715256 in words is "one hundred twenty-five million, seven hundred fifteen thousand, two hundred fifty-six".