56291015 has 48 divisors (see below), whose sum is σ = 80438400. Its totient is φ = 37667520.

The previous prime is 56291003. The next prime is 56291041. The reversal of 56291015 is 51019265.

It is not a de Polignac number, because 56291015 - 2⁶ = 56290951 is a prime.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 678164 + ... + 678246.

It is an arithmetic number, because the mean of its divisors is an integer number (1675800).

Almost surely, 2^56291015 is an apocalyptic number.

56291015 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

56291015 is a deficient number, since it is larger than the sum of its proper divisors (24147385).

56291015 is a wasteful number, since it uses less digits than its factorization.

56291015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 56291015 is about 7502.7338350764. The cubic root of 56291015 is about 383.2478200347.

The spelling of 56291015 in words is "fifty-six million, two hundred ninety-one thousand, fifteen".