56158071 has 4 divisors (see below), whose sum is σ = 74877432. Its totient is φ = 37438712.

The previous prime is 56158057. The next prime is 56158073. The reversal of 56158071 is 17085165.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56158071 - 2⁷ = 56157943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56158073) 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 3 ways as a sum of consecutive naturals, for example, 9359676 + ... + 9359681.

It is an arithmetic number, because the mean of its divisors is an integer number (18719358).

Almost surely, 2^56158071 is an apocalyptic number.

56158071 is a deficient number, since it is larger than the sum of its proper divisors (18719361).

56158071 is a wasteful number, since it uses less digits than its factorization.

56158071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18719360.

The product of its (nonzero) digits is 8400, while the sum is 33.

The square root of 56158071 is about 7493.8688939693. The cubic root of 56158071 is about 382.9458733191.

The spelling of 56158071 in words is "fifty-six million, one hundred fifty-eight thousand, seventy-one".