56540761501 has 4 divisors (see below), whose sum is σ = 64618013152. Its totient is φ = 48463509852.

The previous prime is 56540761489. The next prime is 56540761531. The reversal of 56540761501 is 10516704565.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56540761501 - 2¹³ = 56540753309 is a prime.

It is a super-2 number, since 2×56540761501² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56540761531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4038625815 + ... + 4038625828.

It is an arithmetic number, because the mean of its divisors is an integer number (16154503288).

Almost surely, 2^56540761501 is an apocalyptic number.

It is an amenable number.

56540761501 is a deficient number, since it is larger than the sum of its proper divisors (8077251651).

56540761501 is an equidigital number, since it uses as much as digits as its factorization.

56540761501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8077251650.

The product of its (nonzero) digits is 126000, while the sum is 40.

The spelling of 56540761501 in words is "fifty-six billion, five hundred forty million, seven hundred sixty-one thousand, five hundred one".