56515011 has 8 divisors (see below), whose sum is σ = 86118144. Its totient is φ = 32294280.

The previous prime is 56515007. The next prime is 56515027. The reversal of 56515011 is 11051565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56515011 - 2² = 56515007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56515031) 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, 1345575 + ... + 1345616.

It is an arithmetic number, because the mean of its divisors is an integer number (10764768).

Almost surely, 2^56515011 is an apocalyptic number.

56515011 is a deficient number, since it is larger than the sum of its proper divisors (29603133).

56515011 is a wasteful number, since it uses less digits than its factorization.

56515011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2691201.

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 56515011 is about 7517.6466397404. The cubic root of 56515011 is about 383.7554934898.

Adding to 56515011 its reverse (11051565), we get a palindrome (67566576).

It can be divided in two parts, 565 and 15011, that added together give a triangular number (15576 = T₁₇₆).

The spelling of 56515011 in words is "fifty-six million, five hundred fifteen thousand, eleven".