55869079 has 4 divisors (see below), whose sum is σ = 63850384. Its totient is φ = 47887776.

The previous prime is 55869071. The next prime is 55869091. The reversal of 55869079 is 97096855.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55869079 - 2³ = 55869071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55869071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3990642 + ... + 3990655.

It is an arithmetic number, because the mean of its divisors is an integer number (15962596).

Almost surely, 2^55869079 is an apocalyptic number.

55869079 is a deficient number, since it is larger than the sum of its proper divisors (7981305).

55869079 is an equidigital number, since it uses as much as digits as its factorization.

55869079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7981304.

The product of its (nonzero) digits is 680400, while the sum is 49.

The square root of 55869079 is about 7474.5621276433. The cubic root of 55869079 is about 382.2878576434.

The spelling of 55869079 in words is "fifty-five million, eight hundred sixty-nine thousand, seventy-nine".