56644476001 has 3 divisors (see below), whose sum is σ = 56644714003. Its totient is φ = 56644238000.

The previous prime is 56644475977. The next prime is 56644476011. The reversal of 56644476001 is 10067444665.

The square root of 56644476001 is 238001.

It is a perfect power (a square), and thus also a powerful 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, and also an emirpimes, since its reverse is a distinct semiprime: 10067444665 = 5 ⋅2013488933.

It can be written as a sum of positive squares in only one way, i.e., 30993250401 + 25651225600 = 176049^2 + 160160^2 .

It is not a de Polignac number, because 56644476001 - 2⁷ = 56644475873 is a prime.

It is a super-2 number, since 2×56644476001² (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 (56644476011) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 119001 + ... + 357001.

Almost surely, 2^56644476001 is an apocalyptic number.

56644476001 is the 238001-st square number.

56644476001 is the 119001-st centered octagonal number.

It is an amenable number.

56644476001 is a deficient number, since it is larger than the sum of its proper divisors (238002).

56644476001 is an frugal number, since it uses more digits than its factorization.

56644476001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476002 (or 238001 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 56644476001 in words is "fifty-six billion, six hundred forty-four million, four hundred seventy-six thousand, one".