56724295681 has 8 divisors (see below), whose sum is σ = 58134045024. Its totient is φ = 55318663680.

The previous prime is 56724295669. The next prime is 56724295699. The reversal of 56724295681 is 18659242765.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56724295681 - 2¹³ = 56724287489 is a prime.

It is a super-2 number, since 2×56724295681² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56724295181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1001431 + ... + 1056556.

It is an arithmetic number, because the mean of its divisors is an integer number (7266755628).

Almost surely, 2^56724295681 is an apocalyptic number.

It is an amenable number.

56724295681 is a deficient number, since it is larger than the sum of its proper divisors (1409749343).

56724295681 is a wasteful number, since it uses less digits than its factorization.

56724295681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2058671.

The product of its digits is 7257600, while the sum is 55.

The spelling of 56724295681 in words is "fifty-six billion, seven hundred twenty-four million, two hundred ninety-five thousand, six hundred eighty-one".