55880285 has 8 divisors (see below), whose sum is σ = 68321880. Its totient is φ = 43860544.

The previous prime is 55880269. The next prime is 55880291. The reversal of 55880285 is 58208855.

It can be written as a sum of positive squares in 4 ways, for example, as 22829284 + 33051001 = 4778^2 + 5749^2 .

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 55880285 - 2⁴ = 55880269 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105170 + ... + 105699.

It is an arithmetic number, because the mean of its divisors is an integer number (8540235).

Almost surely, 2^55880285 is an apocalyptic number.

It is an amenable number.

55880285 is a deficient number, since it is larger than the sum of its proper divisors (12441595).

55880285 is a wasteful number, since it uses less digits than its factorization.

55880285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210927.

The product of its (nonzero) digits is 128000, while the sum is 41.

The square root of 55880285 is about 7475.3116991869. The cubic root of 55880285 is about 382.3134151994.

It can be divided in two parts, 55880 and 285, that added together give a palindrome (56165).

The spelling of 55880285 in words is "fifty-five million, eight hundred eighty thousand, two hundred eighty-five".