555713561 has 8 divisors (see below), whose sum is σ = 633664584. Its totient is φ = 482791680.

The previous prime is 555713551. The next prime is 555713563. The reversal of 555713561 is 165317555.

It can be written as a sum of positive squares in 4 ways, for example, as 31990336 + 523723225 = 5656^2 + 22885^2 .

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 555713561 - 2¹⁸ = 555451417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (555713563) 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, 1257050 + ... + 1257491.

It is an arithmetic number, because the mean of its divisors is an integer number (79208073).

Almost surely, 2^555713561 is an apocalyptic number.

It is an amenable number.

555713561 is a deficient number, since it is larger than the sum of its proper divisors (77951023).

555713561 is a wasteful number, since it uses less digits than its factorization.

555713561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2514571.

The product of its digits is 78750, while the sum is 38.

The square root of 555713561 is about 23573.5776029011. The cubic root of 555713561 is about 822.1486190431.

The spelling of 555713561 in words is "five hundred fifty-five million, seven hundred thirteen thousand, five hundred sixty-one".