55889656461 has 24 divisors (see below), whose sum is σ = 81282572280. Its totient is φ = 37004737536.

The previous prime is 55889656453. The next prime is 55889656477. The reversal of 55889656461 is 16465698855.

It is a happy number.

55889656461 is a `hidden beast` number, since 5 + 5 + 8 + 8 + 9 + 6 + 564 + 61 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2253875625 + 53635780836 = 47475^2 + 231594^2 .

It is not a de Polignac number, because 55889656461 - 2³ = 55889656453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55889656481) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3373045 + ... + 3389573.

It is an arithmetic number, because the mean of its divisors is an integer number (3386773845).

Almost surely, 2^55889656461 is an apocalyptic number.

It is an amenable number.

55889656461 is a deficient number, since it is larger than the sum of its proper divisors (25392915819).

55889656461 is a wasteful number, since it uses less digits than its factorization.

55889656461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19085 (or 19082 counting only the distinct ones).

The product of its digits is 62208000, while the sum is 63.

The spelling of 55889656461 in words is "fifty-five billion, eight hundred eighty-nine million, six hundred fifty-six thousand, four hundred sixty-one".