55772016 has 40 divisors (see below), whose sum is σ = 145824000. Its totient is φ = 18365376.

The previous prime is 55772009. The next prime is 55772021. The reversal of 55772016 is 61027755.

It is a super-2 number, since 2×55772016² = 6221035537408512, 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 7 ways as a sum of consecutive naturals, for example, 3016 + ... + 10983.

It is an arithmetic number, because the mean of its divisors is an integer number (3645600).

Almost surely, 2^55772016 is an apocalyptic number.

It is an amenable number.

55772016 is an abundant number, since it is smaller than the sum of its proper divisors (90051984).

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

55772016 is a wasteful number, since it uses less digits than its factorization.

55772016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14093 (or 14087 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 33.

The square root of 55772016 is about 7468.0664164160. The cubic root of 55772016 is about 382.0663426527.

The spelling of 55772016 in words is "fifty-five million, seven hundred seventy-two thousand, sixteen".