55772108 has 12 divisors (see below), whose sum is σ = 111544272. Its totient is φ = 23902320.

The previous prime is 55772107. The next prime is 55772141. The reversal of 55772108 is 80127755.

55772108 is an admirable number.

It is a super-2 number, since 2×55772108² = 6221056061527328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55772107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 995903 + ... + 995958.

It is an arithmetic number, because the mean of its divisors is an integer number (9295356).

Almost surely, 2^55772108 is an apocalyptic number.

It is an amenable number.

55772108 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55772108 is a wasteful number, since it uses less digits than its factorization.

55772108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1991872 (or 1991870 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 35.

The square root of 55772108 is about 7468.0725759730. The cubic root of 55772108 is about 382.0665527347.

The spelling of 55772108 in words is "fifty-five million, seven hundred seventy-two thousand, one hundred eight".