56289976 has 8 divisors (see below), whose sum is σ = 105543720. Its totient is φ = 28144984.

The previous prime is 56289971. The next prime is 56289991. The reversal of 56289976 is 67998265.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×56289976² = 6337122796161152, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56289971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3518116 + ... + 3518131.

It is an arithmetic number, because the mean of its divisors is an integer number (13192965).

Almost surely, 2^56289976 is an apocalyptic number.

It is an amenable number.

56289976 is a deficient number, since it is larger than the sum of its proper divisors (49253744).

56289976 is a wasteful number, since it uses less digits than its factorization.

56289976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7036253 (or 7036249 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 52.

The square root of 56289976 is about 7502.6645933295. The cubic root of 56289976 is about 383.2454620685.

The spelling of 56289976 in words is "fifty-six million, two hundred eighty-nine thousand, nine hundred seventy-six".