125621552 has 20 divisors (see below), whose sum is σ = 278162256. Its totient is φ = 53837760.

The previous prime is 125621543. The next prime is 125621563. The reversal of 125621552 is 255126521.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

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, 560699 + ... + 560922.

Almost surely, 2^125621552 is an apocalyptic number.

It is an amenable number.

125621552 is an abundant number, since it is smaller than the sum of its proper divisors (152540704).

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

125621552 is a wasteful number, since it uses less digits than its factorization.

125621552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121636 (or 1121630 counting only the distinct ones).

The product of its digits is 6000, while the sum is 29.

The square root of 125621552 is about 11208.1020694853. The cubic root of 125621552 is about 500.8273661753.

The spelling of 125621552 in words is "one hundred twenty-five million, six hundred twenty-one thousand, five hundred fifty-two".