55688159 has 2 divisors, whose sum is σ = 55688160. Its totient is φ = 55688158.

The previous prime is 55688147. The next prime is 55688173. The reversal of 55688159 is 95188655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55688159 - 2²⁰ = 54639583 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55688119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27844079 + 27844080.

It is an arithmetic number, because the mean of its divisors is an integer number (27844080).

Almost surely, 2^55688159 is an apocalyptic number.

55688159 is a deficient number, since it is larger than the sum of its proper divisors (1).

55688159 is an equidigital number, since it uses as much as digits as its factorization.

55688159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432000, while the sum is 47.

The square root of 55688159 is about 7462.4499328304. The cubic root of 55688159 is about 381.8747590678.

The spelling of 55688159 in words is "fifty-five million, six hundred eighty-eight thousand, one hundred fifty-nine".