5711511561 has 16 divisors (see below), whose sum is σ = 8725641600. Its totient is φ = 3255326208.

The previous prime is 5711511551. The next prime is 5711511569. The reversal of 5711511561 is 1651151175.

It is not a de Polignac number, because 5711511561 - 2⁶ = 5711511497 is a prime.

It is a super-2 number, since 2×5711511561² = 65242728622873313442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5711511569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341416 + ... + 357753.

It is an arithmetic number, because the mean of its divisors is an integer number (545352600).

Almost surely, 2^5711511561 is an apocalyptic number.

It is an amenable number.

5711511561 is a deficient number, since it is larger than the sum of its proper divisors (3014130039).

5711511561 is a wasteful number, since it uses less digits than its factorization.

5711511561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699568.

The product of its digits is 5250, while the sum is 33.

The square root of 5711511561 is about 75574.5430750329. The cubic root of 5711511561 is about 1787.5177103955.

The spelling of 5711511561 in words is "five billion, seven hundred eleven million, five hundred eleven thousand, five hundred sixty-one".