55706994 has 64 divisors (see below), whose sum is σ = 149817600. Its totient is φ = 14978304.

The previous prime is 55706983. The next prime is 55707007. The reversal of 55706994 is 49960755.

It is a happy number.

55706994 is a `hidden beast` number, since 557 + 0 + 6 + 9 + 94 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2092 + ... + 10760.

It is an arithmetic number, because the mean of its divisors is an integer number (2340900).

Almost surely, 2^55706994 is an apocalyptic number.

55706994 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 55706994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74908800).

55706994 is an abundant number, since it is smaller than the sum of its proper divisors (94110606).

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

55706994 is a wasteful number, since it uses less digits than its factorization.

55706994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8704 (or 8698 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 55706994 is about 7463.7118111567. The cubic root of 55706994 is about 381.9178071200.

The spelling of 55706994 in words is "fifty-five million, seven hundred six thousand, nine hundred ninety-four".