55550285 has 16 divisors (see below), whose sum is σ = 78043392. Its totient is φ = 37161600.

The previous prime is 55550279. The next prime is 55550291. The reversal of 55550285 is 58205555.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55550279) and next prime (55550291).

It is not a de Polignac number, because 55550285 - 2⁸ = 55550029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17921 + ... + 20790.

It is an arithmetic number, because the mean of its divisors is an integer number (4877712).

Almost surely, 2^55550285 is an apocalyptic number.

It is an amenable number.

55550285 is a deficient number, since it is larger than the sum of its proper divisors (22493107).

55550285 is a wasteful number, since it uses less digits than its factorization.

55550285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38764.

The product of its (nonzero) digits is 50000, while the sum is 35.

The square root of 55550285 is about 7453.2063569983. The cubic root of 55550285 is about 381.5593472428.

The spelling of 55550285 in words is "fifty-five million, five hundred fifty thousand, two hundred eighty-five".