55985853 has 32 divisors (see below), whose sum is σ = 93883392. Its totient is φ = 29069040.

The previous prime is 55985849. The next prime is 55985857. The reversal of 55985853 is 35858955.

It is an interprime number because it is at equal distance from previous prime (55985849) and next prime (55985857).

It is not a de Polignac number, because 55985853 - 2² = 55985849 is a prime.

It is a super-2 number, since 2×55985853² = 6268831472275218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55985857) 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, 26950 + ... + 28952.

It is an arithmetic number, because the mean of its divisors is an integer number (2933856).

Almost surely, 2^55985853 is an apocalyptic number.

It is an amenable number.

55985853 is a deficient number, since it is larger than the sum of its proper divisors (37897539).

55985853 is a wasteful number, since it uses less digits than its factorization.

55985853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046 (or 2024 counting only the distinct ones).

The product of its digits is 1080000, while the sum is 48.

The square root of 55985853 is about 7482.3694776454. The cubic root of 55985853 is about 382.5540168918.

The spelling of 55985853 in words is "fifty-five million, nine hundred eighty-five thousand, eight hundred fifty-three".