56641253011 has 24 divisors (see below), whose sum is σ = 67622428800. Its totient is φ = 47285626752.

The previous prime is 56641252973. The next prime is 56641253027. The reversal of 56641253011 is 11035214665.

It is not a de Polignac number, because 56641253011 - 2⁷ = 56641252883 is a prime.

It is a super-2 number, since 2×56641253011² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56641253041) 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 23 ways as a sum of consecutive naturals, for example, 276190 + ... + 435388.

It is an arithmetic number, because the mean of its divisors is an integer number (2817601200).

Almost surely, 2^56641253011 is an apocalyptic number.

56641253011 is a deficient number, since it is larger than the sum of its proper divisors (10981175789).

56641253011 is a wasteful number, since it uses less digits than its factorization.

56641253011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159403 (or 159396 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

Adding to 56641253011 its reverse (11035214665), we get a palindrome (67676467676).

The spelling of 56641253011 in words is "fifty-six billion, six hundred forty-one million, two hundred fifty-three thousand, eleven".