56277242231381 has 4 divisors (see below), whose sum is σ = 56289971763564. Its totient is φ = 56264512699200.

The previous prime is 56277242231263. The next prime is 56277242231383. The reversal of 56277242231381 is 18313224277265.

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 31438830277156 + 24838411954225 = 5607034^2 + 4983815^2 .

It is a cyclic number.

It is not a de Polignac number, because 56277242231381 - 2²² = 56277238037077 is a prime.

It is a super-2 number, since 2×56277242231381² (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 (56277242231383) 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, 6364759460 + ... + 6364768301.

It is an arithmetic number, because the mean of its divisors is an integer number (14072492940891).

Almost surely, 2^{56277242231381} is an apocalyptic number.

It is an amenable number.

56277242231381 is a deficient number, since it is larger than the sum of its proper divisors (12729532183).

56277242231381 is a wasteful number, since it uses less digits than its factorization.

56277242231381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12729532182.

The product of its digits is 6773760, while the sum is 53.

The spelling of 56277242231381 in words is "fifty-six trillion, two hundred seventy-seven billion, two hundred forty-two million, two hundred thirty-one thousand, three hundred eighty-one".