56549315601 has 27 divisors (see below), whose sum is σ = 84435277563. Its totient is φ = 36469161360.

The previous prime is 56549315551. The next prime is 56549315633. The reversal of 56549315601 is 10651394565.

The square root of 56549315601 is 237801.

It is a perfect power (a square), and thus also a powerful number.

56549315601 is a `hidden beast` number, since 5 + 6 + 5 + 4 + 9 + 31 + 5 + 601 = 666.

It can be written as a sum of positive squares in only one way, i.e., 24265850625 + 32283464976 = 155775^2 + 179676^2 .

It is not a de Polignac number, because 56549315601 - 2⁹ = 56549315089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56549315681) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 22114215 + ... + 22116771.

Almost surely, 2^56549315601 is an apocalyptic number.

56549315601 is the 237801-st square number.

56549315601 is the 118901-st centered octagonal number.

It is an amenable number.

56549315601 is a deficient number, since it is larger than the sum of its proper divisors (27885961962).

56549315601 is an frugal number, since it uses more digits than its factorization.

56549315601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5182 (or 2591 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 45.

The spelling of 56549315601 in words is "fifty-six billion, five hundred forty-nine million, three hundred fifteen thousand, six hundred one".