55706655 has 16 divisors (see below), whose sum is σ = 89224704. Its totient is φ = 29678880.

The previous prime is 55706641. The next prime is 55706663. The reversal of 55706655 is 55660755.

It is not a de Polignac number, because 55706655 - 2⁷ = 55706527 is a prime.

It is a super-2 number, since 2×55706655² = 6206462822578050, which contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 22950 + ... + 25260.

It is an arithmetic number, because the mean of its divisors is an integer number (5576544).

Almost surely, 2^55706655 is an apocalyptic number.

55706655 is a deficient number, since it is larger than the sum of its proper divisors (33518049).

55706655 is a wasteful number, since it uses less digits than its factorization.

55706655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3926.

The product of its (nonzero) digits is 157500, while the sum is 39.

The square root of 55706655 is about 7463.6891012421. The cubic root of 55706655 is about 381.9170324094.

The spelling of 55706655 in words is "fifty-five million, seven hundred six thousand, six hundred fifty-five".