125656216 has 32 divisors (see below), whose sum is σ = 274350240. Its totient is φ = 52835328.

The previous prime is 125656207. The next prime is 125656241. The reversal of 125656216 is 612656521.

It is a congruent number.

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, 18201 + ... + 24136.

It is an arithmetic number, because the mean of its divisors is an integer number (8573445).

Almost surely, 2^125656216 is an apocalyptic number.

It is an amenable number.

125656216 is an abundant number, since it is smaller than the sum of its proper divisors (148694024).

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

125656216 is a wasteful number, since it uses less digits than its factorization.

125656216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42403 (or 42399 counting only the distinct ones).

The product of its digits is 21600, while the sum is 34.

The square root of 125656216 is about 11209.6483441721. The cubic root of 125656216 is about 500.8734280252.

It can be divided in two parts, 12565 and 6216, that added together give a palindrome (18781).

The spelling of 125656216 in words is "one hundred twenty-five million, six hundred fifty-six thousand, two hundred sixteen".