125784056 has 32 divisors (see below), whose sum is σ = 248896800. Its totient is φ = 59473920.

The previous prime is 125784041. The next prime is 125784059. The reversal of 125784056 is 650487521.

It is a super-2 number, since 2×125784056² = 31643257487622272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125784059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12536 + ... + 20216.

It is an arithmetic number, because the mean of its divisors is an integer number (7778025).

Almost surely, 2^125784056 is an apocalyptic number.

It is an amenable number.

125784056 is a deficient number, since it is larger than the sum of its proper divisors (123112744).

125784056 is a wasteful number, since it uses less digits than its factorization.

125784056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7799 (or 7795 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 125784056 is about 11215.3491251945. The cubic root of 125784056 is about 501.0432298292.

It can be divided in two parts, 125 and 784056, that multiplied together give a triangular number (98007000 = T₁₄₀₀₀).

The spelling of 125784056 in words is "one hundred twenty-five million, seven hundred eighty-four thousand, fifty-six".