55479669 has 8 divisors (see below), whose sum is σ = 84540480. Its totient is φ = 31702656.

The previous prime is 55479667. The next prime is 55479673. The reversal of 55479669 is 96697455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55479669 - 2¹ = 55479667 is a prime.

It is a super-2 number, since 2×55479669² = 6155987344699122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55479661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1320924 + ... + 1320965.

It is an arithmetic number, because the mean of its divisors is an integer number (10567560).

Almost surely, 2^55479669 is an apocalyptic number.

It is an amenable number.

55479669 is a deficient number, since it is larger than the sum of its proper divisors (29060811).

55479669 is a wasteful number, since it uses less digits than its factorization.

55479669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641899.

The product of its digits is 2041200, while the sum is 51.

The square root of 55479669 is about 7448.4675605120. The cubic root of 55479669 is about 381.3975981767.

The spelling of 55479669 in words is "fifty-five million, four hundred seventy-nine thousand, six hundred sixty-nine".