56071361501 has 16 divisors (see below), whose sum is σ = 57305826864. Its totient is φ = 54843769344.

The previous prime is 56071361497. The next prime is 56071361557. The reversal of 56071361501 is 10516317065.

It can be written as a sum of positive squares in 8 ways, for example, as 174108025 + 55897253476 = 13195^2 + 236426^2 .

It is a cyclic number.

It is not a de Polignac number, because 56071361501 - 2² = 56071361497 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56071361561) 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 15 ways as a sum of consecutive naturals, for example, 35109635 + ... + 35111231.

It is an arithmetic number, because the mean of its divisors is an integer number (3581614179).

Almost surely, 2^56071361501 is an apocalyptic number.

It is an amenable number.

56071361501 is a deficient number, since it is larger than the sum of its proper divisors (1234465363).

56071361501 is a wasteful number, since it uses less digits than its factorization.

56071361501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3280.

The product of its (nonzero) digits is 18900, while the sum is 35.

Adding to 56071361501 its reverse (10516317065), we get a palindrome (66587678566).

The spelling of 56071361501 in words is "fifty-six billion, seventy-one million, three hundred sixty-one thousand, five hundred one".