5656518554 has 4 divisors (see below), whose sum is σ = 8484777834. Its totient is φ = 2828259276.

The previous prime is 5656518551. The next prime is 5656518559. The reversal of 5656518554 is 4558156565.

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

It can be written as a sum of positive squares in only one way, i.e., 3524203225 + 2132315329 = 59365^2 + 46177^2 .

It is a super-3 number, since 3×5656518554³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (5656518551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1414129637 + ... + 1414129640.

Almost surely, 2^5656518554 is an apocalyptic number.

5656518554 is a deficient number, since it is larger than the sum of its proper divisors (2828259280).

5656518554 is a wasteful number, since it uses less digits than its factorization.

5656518554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2828259279.

The product of its digits is 3600000, while the sum is 50.

The square root of 5656518554 is about 75209.8301686688. The cubic root of 5656518554 is about 1781.7621897654.

The spelling of 5656518554 in words is "five billion, six hundred fifty-six million, five hundred eighteen thousand, five hundred fifty-four".