55380579 has 8 divisors (see below), whose sum is σ = 73876560. Its totient is φ = 36902496.

The previous prime is 55380571. The next prime is 55380607. The reversal of 55380579 is 97508355.

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

It is not a de Polignac number, because 55380579 - 2³ = 55380571 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55380579.

It is not an unprimeable number, because it can be changed into a prime (55380571) 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, 6829 + ... + 12545.

It is an arithmetic number, because the mean of its divisors is an integer number (9234570).

Almost surely, 2^55380579 is an apocalyptic number.

55380579 is a deficient number, since it is larger than the sum of its proper divisors (18495981).

55380579 is a wasteful number, since it uses less digits than its factorization.

55380579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8949.

The product of its (nonzero) digits is 189000, while the sum is 42.

The square root of 55380579 is about 7441.8128839685. The cubic root of 55380579 is about 381.1703965667.

The spelling of 55380579 in words is "fifty-five million, three hundred eighty thousand, five hundred seventy-nine".