55731159 has 20 divisors (see below), whose sum is σ = 90822600. Its totient is φ = 33775920.

The previous prime is 55731157. The next prime is 55731163. The reversal of 55731159 is 95113755.

It is not a de Polignac number, because 55731159 - 2¹ = 55731157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55731157) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 30384 + ... + 32165.

It is an arithmetic number, because the mean of its divisors is an integer number (4541130).

Almost surely, 2^55731159 is an apocalyptic number.

55731159 is a deficient number, since it is larger than the sum of its proper divisors (35091441).

55731159 is a wasteful number, since it uses less digits than its factorization.

55731159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62572 (or 62563 counting only the distinct ones).

The product of its digits is 23625, while the sum is 36.

The square root of 55731159 is about 7465.3304682378. The cubic root of 55731159 is about 381.9730228658.

The spelling of 55731159 in words is "fifty-five million, seven hundred thirty-one thousand, one hundred fifty-nine".