55789137 has 6 divisors (see below), whose sum is σ = 80584322. Its totient is φ = 37192752.

The previous prime is 55789133. The next prime is 55789157. The reversal of 55789137 is 73198755.

55789137 is a `hidden beast` number, since 557 + 8 + 91 + 3 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 55711296 + 77841 = 7464^2 + 279^2 .

It is not a de Polignac number, because 55789137 - 2² = 55789133 is a prime.

It is a super-2 number, since 2×55789137² = 6224855614409538, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55789092 and 55789101.

It is not an unprimeable number, because it can be changed into a prime (55789133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3099388 + ... + 3099405.

Almost surely, 2^55789137 is an apocalyptic number.

It is an amenable number.

55789137 is a deficient number, since it is larger than the sum of its proper divisors (24795185).

55789137 is a wasteful number, since it uses less digits than its factorization.

55789137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6198799 (or 6198796 counting only the distinct ones).

The product of its digits is 264600, while the sum is 45.

The square root of 55789137 is about 7469.2126091041. The cubic root of 55789137 is about 382.1054344714.

The spelling of 55789137 in words is "fifty-five million, seven hundred eighty-nine thousand, one hundred thirty-seven".