125656044 has 72 divisors (see below), whose sum is σ = 328023360. Its totient is φ = 37327104.

The previous prime is 125656039. The next prime is 125656081. The reversal of 125656044 is 440656521.

It is a junction number, because it is equal to n+sod(n) for n = 125655996 and 125656014.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64939 + ... + 66845.

It is an arithmetic number, because the mean of its divisors is an integer number (4555880).

Almost surely, 2^125656044 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 125656044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164011680).

125656044 is an abundant number, since it is smaller than the sum of its proper divisors (202367316).

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

125656044 is a wasteful number, since it uses less digits than its factorization.

125656044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1967 (or 1948 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 125656044 is about 11209.6406722071. The cubic root of 125656044 is about 500.8731994909.

The spelling of 125656044 in words is "one hundred twenty-five million, six hundred fifty-six thousand, forty-four".