55050390 has 24 divisors (see below), whose sum is σ = 143131248. Its totient is φ = 14680080.

The previous prime is 55050379. The next prime is 55050407. The reversal of 55050390 is 9305055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 305746 + ... + 305925.

It is an arithmetic number, because the mean of its divisors is an integer number (5963802).

Almost surely, 2^55050390 is an apocalyptic number.

55050390 is an abundant number, since it is smaller than the sum of its proper divisors (88080858).

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

55050390 is a wasteful number, since it uses less digits than its factorization.

55050390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611684 (or 611681 counting only the distinct ones).

The product of its (nonzero) digits is 3375, while the sum is 27.

The square root of 55050390 is about 7419.5950024243. The cubic root of 55050390 is about 380.4113504891.

The spelling of 55050390 in words is "fifty-five million, fifty thousand, three hundred ninety".