55971055 has 32 divisors (see below), whose sum is σ = 85570560. Its totient is φ = 34214400.

The previous prime is 55971053. The next prime is 55971061. The reversal of 55971055 is 55017955.

It is not a de Polignac number, because 55971055 - 2¹ = 55971053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55971053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8830 + ... + 13780.

It is an arithmetic number, because the mean of its divisors is an integer number (2674080).

Almost surely, 2^55971055 is an apocalyptic number.

55971055 is a deficient number, since it is larger than the sum of its proper divisors (29599505).

55971055 is a wasteful number, since it uses less digits than its factorization.

55971055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4999.

The product of its (nonzero) digits is 39375, while the sum is 37.

The square root of 55971055 is about 7481.3805544164. The cubic root of 55971055 is about 382.5203087740.

The spelling of 55971055 in words is "fifty-five million, nine hundred seventy-one thousand, fifty-five".