290055521 has 8 divisors (see below), whose sum is σ = 331727424. Its totient is φ = 248442480.

The previous prime is 290055509. The next prime is 290055523. The reversal of 290055521 is 125550092.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-290055521 is a prime.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3590 + ... + 24351.

It is an arithmetic number, because the mean of its divisors is an integer number (41465928).

Almost surely, 2^290055521 is an apocalyptic number.

It is an amenable number.

290055521 is a deficient number, since it is larger than the sum of its proper divisors (41671903).

290055521 is a wasteful number, since it uses less digits than its factorization.

290055521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29431.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 290055521 is about 17031.0164406004. The cubic root of 290055521 is about 661.9528334154.

The spelling of 290055521 in words is "two hundred ninety million, fifty-five thousand, five hundred twenty-one".