55569371 has 12 divisors (see below), whose sum is σ = 65780736. Its totient is φ = 46630320.

The previous prime is 55569361. The next prime is 55569383. The reversal of 55569371 is 17396555.

It is a de Polignac number, because none of the positive numbers 2^k-55569371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55569341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16091 + ... + 19236.

It is an arithmetic number, because the mean of its divisors is an integer number (5481728).

Almost surely, 2^55569371 is an apocalyptic number.

55569371 is a deficient number, since it is larger than the sum of its proper divisors (10211365).

55569371 is a wasteful number, since it uses less digits than its factorization.

55569371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35362 (or 35351 counting only the distinct ones).

The product of its digits is 141750, while the sum is 41.

The square root of 55569371 is about 7454.4866355773. The cubic root of 55569371 is about 381.6030410350.

The spelling of 55569371 in words is "fifty-five million, five hundred sixty-nine thousand, three hundred seventy-one".