125636608 has 52 divisors (see below), whose sum is σ = 258344140. Its totient is φ = 61046784.

The previous prime is 125636597. The next prime is 125636611. The reversal of 125636608 is 806636521.

It can be written as a sum of positive squares in 2 ways, for example, as 94633984 + 31002624 = 9728^2 + 5568^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

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, 151138 + ... + 151966.

Almost surely, 2^125636608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125636608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129172070).

125636608 is an abundant number, since it is smaller than the sum of its proper divisors (132707532).

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

125636608 is an frugal number, since it uses more digits than its factorization.

125636608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890 (or 868 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 125636608 is about 11208.7737063427. The cubic root of 125636608 is about 500.8473737708.

The spelling of 125636608 in words is "one hundred twenty-five million, six hundred thirty-six thousand, six hundred eight".