55551259 has 2 divisors, whose sum is σ = 55551260. Its totient is φ = 55551258.

The previous prime is 55551247. The next prime is 55551277. The reversal of 55551259 is 95215555.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55551259 - 2¹¹ = 55549211 is a prime.

It is not a weakly prime, because it can be changed into another prime (55551229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27775629 + 27775630.

It is an arithmetic number, because the mean of its divisors is an integer number (27775630).

Almost surely, 2^55551259 is an apocalyptic number.

55551259 is a deficient number, since it is larger than the sum of its proper divisors (1).

55551259 is an equidigital number, since it uses as much as digits as its factorization.

55551259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56250, while the sum is 37.

The square root of 55551259 is about 7453.2716977177. The cubic root of 55551259 is about 381.5615772742.

The spelling of 55551259 in words is "fifty-five million, five hundred fifty-one thousand, two hundred fifty-nine".