56513552741 has 4 divisors (see below), whose sum is σ = 56559990732. Its totient is φ = 56467114752.

The previous prime is 56513552731. The next prime is 56513552867. The reversal of 56513552741 is 14725531565.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23064800641 + 33448752100 = 151871^2 + 182890^2 .

It is a cyclic number.

It is not a de Polignac number, because 56513552741 - 2⁶ = 56513552677 is a prime.

It is a super-2 number, since 2×56513552741² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56513552692 and 56513552701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56513552731) 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, 23217170 + ... + 23219603.

It is an arithmetic number, because the mean of its divisors is an integer number (14139997683).

Almost surely, 2^56513552741 is an apocalyptic number.

It is an amenable number.

56513552741 is a deficient number, since it is larger than the sum of its proper divisors (46437991).

56513552741 is a wasteful number, since it uses less digits than its factorization.

56513552741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46437990.

The product of its digits is 630000, while the sum is 44.

The spelling of 56513552741 in words is "fifty-six billion, five hundred thirteen million, five hundred fifty-two thousand, seven hundred forty-one".