55588807 has 2 divisors, whose sum is σ = 55588808. Its totient is φ = 55588806.

The previous prime is 55588783. The next prime is 55588823. The reversal of 55588807 is 70888555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55588807 - 2¹⁹ = 55064519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55588867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27794403 + 27794404.

It is an arithmetic number, because the mean of its divisors is an integer number (27794404).

Almost surely, 2^55588807 is an apocalyptic number.

55588807 is a deficient number, since it is larger than the sum of its proper divisors (1).

55588807 is an equidigital number, since it uses as much as digits as its factorization.

55588807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448000, while the sum is 46.

The square root of 55588807 is about 7455.7901660387. The cubic root of 55588807 is about 381.6475258056.

It can be divided in two parts, 5558 and 8807, that added together give a triangular number (14365 = T₁₆₉).

The spelling of 55588807 in words is "fifty-five million, five hundred eighty-eight thousand, eight hundred seven".