56131406614501 has 4 divisors (see below), whose sum is σ = 56131422117100. Its totient is φ = 56131391111904.

The previous prime is 56131406614489. The next prime is 56131406614523. The reversal of 56131406614501 is 10541660413165.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 24936780018276 + 31194626596225 = 4993674^2 + 5585215^2 .

It is a cyclic number.

It is not a de Polignac number, because 56131406614501 - 2⁷ = 56131406614373 is a prime.

It is a super-2 number, since 2×56131406614501² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56131406614531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 893995 + ... + 10633063.

It is an arithmetic number, because the mean of its divisors is an integer number (14032855529275).

Almost surely, 2^{56131406614501} is an apocalyptic number.

It is an amenable number.

56131406614501 is a deficient number, since it is larger than the sum of its proper divisors (15502599).

56131406614501 is an equidigital number, since it uses as much as digits as its factorization.

56131406614501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15502598.

The product of its (nonzero) digits is 259200, while the sum is 43.

The spelling of 56131406614501 in words is "fifty-six trillion, one hundred thirty-one billion, four hundred six million, six hundred fourteen thousand, five hundred one".