5395641561 has 6 divisors (see below), whose sum is σ = 7793704490. Its totient is φ = 3597094368.

The previous prime is 5395641557. The next prime is 5395641593. The reversal of 5395641561 is 1651465935.

5395641561 is a `hidden beast` number, since 5 + 39 + 56 + 4 + 1 + 561 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5029646400 + 365995161 = 70920^2 + 19131^2 .

It is not a de Polignac number, because 5395641561 - 2² = 5395641557 is a prime.

It is a super-2 number, since 2×5395641561² = 58225895709581033442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5395641761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 299757856 + ... + 299757873.

Almost surely, 2^5395641561 is an apocalyptic number.

It is an amenable number.

5395641561 is a deficient number, since it is larger than the sum of its proper divisors (2398062929).

5395641561 is a wasteful number, since it uses less digits than its factorization.

5395641561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599515735 (or 599515732 counting only the distinct ones).

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

The square root of 5395641561 is about 73455.0308760401. The cubic root of 5395641561 is about 1753.9385102179.

The spelling of 5395641561 in words is "five billion, three hundred ninety-five million, six hundred forty-one thousand, five hundred sixty-one".