55656738 has 24 divisors (see below), whose sum is σ = 126937200. Its totient is φ = 17575704.

The previous prime is 55656737. The next prime is 55656739. The reversal of 55656738 is 83765655.

55656738 is a `hidden beast` number, since 5 + 56 + 567 + 38 = 666.

It is an interprime number because it is at equal distance from previous prime (55656737) and next prime (55656739).

It is a junction number, because it is equal to n+sod(n) for n = 55656693 and 55656702.

It is not an unprimeable number, because it can be changed into a prime (55656737) 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, 81028 + ... + 81711.

It is an arithmetic number, because the mean of its divisors is an integer number (5289050).

Almost surely, 2^55656738 is an apocalyptic number.

55656738 is an abundant number, since it is smaller than the sum of its proper divisors (71280462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55656738 is a wasteful number, since it uses less digits than its factorization.

55656738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162766 (or 162763 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The square root of 55656738 is about 7460.3443620251. The cubic root of 55656738 is about 381.8029236636.

The spelling of 55656738 in words is "fifty-five million, six hundred fifty-six thousand, seven hundred thirty-eight".