55775706 has 32 divisors (see below), whose sum is σ = 127733760. Its totient is φ = 15905136.

The previous prime is 55775701. The next prime is 55775717. The reversal of 55775706 is 60757755.

55775706 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55775706² = 6221858759596872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (55775701) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 29275 + ... + 31121.

It is an arithmetic number, because the mean of its divisors is an integer number (3991680).

Almost surely, 2^55775706 is an apocalyptic number.

55775706 is an abundant number, since it is smaller than the sum of its proper divisors (71958054).

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

55775706 is a wasteful number, since it uses less digits than its factorization.

55775706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2578.

The product of its (nonzero) digits is 257250, while the sum is 42.

The square root of 55775706 is about 7468.3134642301. The cubic root of 55775706 is about 382.0747685851.

The spelling of 55775706 in words is "fifty-five million, seven hundred seventy-five thousand, seven hundred six".