55578079 has 8 divisors (see below), whose sum is σ = 57182112. Its totient is φ = 53994720.

The previous prime is 55578053. The next prime is 55578109. The reversal of 55578079 is 97087555.

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

It is a cyclic number.

It is not a de Polignac number, because 55578079 - 2⁹ = 55577567 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 (55573079) 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, 369 + ... + 10549.

It is an arithmetic number, because the mean of its divisors is an integer number (7147764).

Almost surely, 2^55578079 is an apocalyptic number.

55578079 is a deficient number, since it is larger than the sum of its proper divisors (1604033).

55578079 is a wasteful number, since it uses less digits than its factorization.

55578079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10337.

The product of its (nonzero) digits is 441000, while the sum is 46.

The square root of 55578079 is about 7455.0706904764. The cubic root of 55578079 is about 381.6229730327.

The spelling of 55578079 in words is "fifty-five million, five hundred seventy-eight thousand, seventy-nine".