55880079 has 8 divisors (see below), whose sum is σ = 74587392. Its totient is φ = 37213080.

The previous prime is 55880047. The next prime is 55880107. The reversal of 55880079 is 97008855.

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

It is not a de Polignac number, because 55880079 - 2⁵ = 55880047 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 55880079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55880579) 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, 6679 + ... + 12504.

It is an arithmetic number, because the mean of its divisors is an integer number (9323424).

Almost surely, 2^55880079 is an apocalyptic number.

55880079 is a deficient number, since it is larger than the sum of its proper divisors (18707313).

55880079 is a wasteful number, since it uses less digits than its factorization.

55880079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20157.

The product of its (nonzero) digits is 100800, while the sum is 42.

The square root of 55880079 is about 7475.2979204845. The cubic root of 55880079 is about 382.3129454055.

The spelling of 55880079 in words is "fifty-five million, eight hundred eighty thousand, seventy-nine".