56146871 has 32 divisors (see below), whose sum is σ = 66977280. Its totient is φ = 46569600.

The previous prime is 56146799. The next prime is 56146873. The reversal of 56146871 is 17864165.

It is a de Polignac number, because none of the positive numbers 2^k-56146871 is a prime.

It is a super-2 number, since 2×56146871² = 6304942246181282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56146873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 790766 + ... + 790836.

It is an arithmetic number, because the mean of its divisors is an integer number (2093040).

Almost surely, 2^56146871 is an apocalyptic number.

56146871 is a deficient number, since it is larger than the sum of its proper divisors (10830409).

56146871 is a wasteful number, since it uses less digits than its factorization.

56146871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215.

The product of its digits is 40320, while the sum is 38.

The square root of 56146871 is about 7493.1215791551. The cubic root of 56146871 is about 382.9204137615.

The spelling of 56146871 in words is "fifty-six million, one hundred forty-six thousand, eight hundred seventy-one".