55214879 has 2 divisors, whose sum is σ = 55214880. Its totient is φ = 55214878.

The previous prime is 55214839. The next prime is 55214897. The reversal of 55214879 is 97841255.

55214879 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (55214897) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55214879 - 2²⁰ = 54166303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55214839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27607439 + 27607440.

It is an arithmetic number, because the mean of its divisors is an integer number (27607440).

Almost surely, 2^55214879 is an apocalyptic number.

55214879 is a deficient number, since it is larger than the sum of its proper divisors (1).

55214879 is an equidigital number, since it uses as much as digits as its factorization.

55214879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100800, while the sum is 41.

The square root of 55214879 is about 7430.6715039759. The cubic root of 55214879 is about 380.7898598468.

The spelling of 55214879 in words is "fifty-five million, two hundred fourteen thousand, eight hundred seventy-nine".