125547664 has 30 divisors (see below), whose sum is σ = 267376550. Its totient is φ = 57066240.

The previous prime is 125547661. The next prime is 125547671. The reversal of 125547664 is 466745521.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 104203264 + 21344400 = 10208^2 + 4620^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125547661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30489 + ... + 34360.

Almost surely, 2^125547664 is an apocalyptic number.

It is an amenable number.

125547664 is an abundant number, since it is smaller than the sum of its proper divisors (141828886).

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

125547664 is a wasteful number, since it uses less digits than its factorization.

125547664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64879 (or 64862 counting only the distinct ones).

The product of its digits is 201600, while the sum is 40.

The square root of 125547664 is about 11204.8053976854. The cubic root of 125547664 is about 500.7291548163.

The spelling of 125547664 in words is "one hundred twenty-five million, five hundred forty-seven thousand, six hundred sixty-four".