290055520 has 48 divisors (see below), whose sum is σ = 721329840. Its totient is φ = 109914624.

The previous prime is 290055509. The next prime is 290055523. The reversal of 290055520 is 25550092.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290055523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44667 + ... + 50746.

It is an arithmetic number, because the mean of its divisors is an integer number (15027705).

Almost surely, 2^290055520 is an apocalyptic number.

290055520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

290055520 is an abundant number, since it is smaller than the sum of its proper divisors (431274320).

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

290055520 is a wasteful number, since it uses less digits than its factorization.

290055520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95447 (or 95439 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 290055520 is about 17031.0164112422. The cubic root of 290055520 is about 661.9528326547.

The spelling of 290055520 in words is "two hundred ninety million, fifty-five thousand, five hundred twenty".