55566722 has 4 divisors (see below), whose sum is σ = 83350086. Its totient is φ = 27783360.

The previous prime is 55566703. The next prime is 55566739. The reversal of 55566722 is 22766555.

55566722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 39075001 + 16491721 = 6251^2 + 4061^2 .

It is a super-3 number, since 3×55566722³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13891679 + ... + 13891682.

Almost surely, 2^55566722 is an apocalyptic number.

55566722 is a deficient number, since it is larger than the sum of its proper divisors (27783364).

55566722 is a wasteful number, since it uses less digits than its factorization.

55566722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27783363.

The product of its digits is 126000, while the sum is 38.

The square root of 55566722 is about 7454.3089552285. The cubic root of 55566722 is about 381.5969772478.

The spelling of 55566722 in words is "fifty-five million, five hundred sixty-six thousand, seven hundred twenty-two".