55855479 has 16 divisors (see below), whose sum is σ = 77414400. Its totient is φ = 35779296.

The previous prime is 55855463. The next prime is 55855483. The reversal of 55855479 is 97455855.

It is a happy number.

It is not a de Polignac number, because 55855479 - 2⁴ = 55855463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55855379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17962 + ... + 20840.

It is an arithmetic number, because the mean of its divisors is an integer number (4838400).

Almost surely, 2^55855479 is an apocalyptic number.

55855479 is a deficient number, since it is larger than the sum of its proper divisors (21558921).

55855479 is a wasteful number, since it uses less digits than its factorization.

55855479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3134.

The product of its digits is 1260000, while the sum is 48.

The square root of 55855479 is about 7473.6523199839. The cubic root of 55855479 is about 382.2568354938.

The spelling of 55855479 in words is "fifty-five million, eight hundred fifty-five thousand, four hundred seventy-nine".