55552885 has 8 divisors (see below), whose sum is σ = 67602816. Its totient is φ = 43816080.

The previous prime is 55552877. The next prime is 55552901. The reversal of 55552885 is 58825555.

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

It is not a de Polignac number, because 55552885 - 2³ = 55552877 is a prime.

It is a super-2 number, since 2×55552885² = 6172246063646450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77889 + ... + 78598.

It is an arithmetic number, because the mean of its divisors is an integer number (8450352).

Almost surely, 2^55552885 is an apocalyptic number.

It is an amenable number.

55552885 is a deficient number, since it is larger than the sum of its proper divisors (12049931).

55552885 is a wasteful number, since it uses less digits than its factorization.

55552885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156563.

The product of its digits is 400000, while the sum is 43.

The square root of 55552885 is about 7453.3807765336. The cubic root of 55552885 is about 381.5653000405.

The spelling of 55552885 in words is "fifty-five million, five hundred fifty-two thousand, eight hundred eighty-five".