55300290 has 32 divisors (see below), whose sum is σ = 133422336. Its totient is φ = 14668800.

The previous prime is 55300283. The next prime is 55300291. The reversal of 55300290 is 9200355.

It is a self number, because there is not a number n which added to its sum of digits gives 55300290.

It is not an unprimeable number, because it can be changed into a prime (55300291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1015 + ... + 10565.

It is an arithmetic number, because the mean of its divisors is an integer number (4169448).

Almost surely, 2^55300290 is an apocalyptic number.

55300290 is an abundant number, since it is smaller than the sum of its proper divisors (78122046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55300290 is a wasteful number, since it uses less digits than its factorization.

55300290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9754.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 55300290 is about 7436.4164756958. The cubic root of 55300290 is about 380.9861045765.

The spelling of 55300290 in words is "fifty-five million, three hundred thousand, two hundred ninety".