55011057 has 16 divisors (see below), whose sum is σ = 76440000. Its totient is φ = 35146944.

The previous prime is 55011041. The next prime is 55011071. The reversal of 55011057 is 75011055.

It is not a de Polignac number, because 55011057 - 2⁴ = 55011041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55011017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9819 + ... + 14367.

It is an arithmetic number, because the mean of its divisors is an integer number (4777500).

Almost surely, 2^55011057 is an apocalyptic number.

It is an amenable number.

55011057 is a deficient number, since it is larger than the sum of its proper divisors (21428943).

55011057 is a wasteful number, since it uses less digits than its factorization.

55011057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4720.

The product of its (nonzero) digits is 875, while the sum is 24.

The square root of 55011057 is about 7416.9439124211. The cubic root of 55011057 is about 380.3207287597.

The spelling of 55011057 in words is "fifty-five million, eleven thousand, fifty-seven".