55964637 has 12 divisors (see below), whose sum is σ = 81429660. Its totient is φ = 37036608.

The previous prime is 55964617. The next prime is 55964651. The reversal of 55964637 is 73646955.

55964637 is a `hidden beast` number, since 5 + 5 + 9 + 6 + 4 + 637 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 36832761 + 19131876 = 6069^2 + 4374^2 .

It is not a de Polignac number, because 55964637 - 2¹⁶ = 55899101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55964592 and 55964601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55964617) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21462 + ... + 23927.

It is an arithmetic number, because the mean of its divisors is an integer number (6785805).

Almost surely, 2^55964637 is an apocalyptic number.

It is an amenable number.

55964637 is a deficient number, since it is larger than the sum of its proper divisors (25465023).

55964637 is a wasteful number, since it uses less digits than its factorization.

55964637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45532 (or 45529 counting only the distinct ones).

The product of its digits is 680400, while the sum is 45.

The square root of 55964637 is about 7480.9516105907. The cubic root of 55964637 is about 382.5056874715.

It can be divided in two parts, 55 and 964637, that multiplied together give a palindrome (53055035).

The spelling of 55964637 in words is "fifty-five million, nine hundred sixty-four thousand, six hundred thirty-seven".