290255155 has 8 divisors (see below), whose sum is σ = 351562032. Its totient is φ = 230033568.

The previous prime is 290255149. The next prime is 290255197. The reversal of 290255155 is 551552092.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 290255155 - 2¹¹ = 290253107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 290255155.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270732 + ... + 271801.

It is an arithmetic number, because the mean of its divisors is an integer number (43945254).

Almost surely, 2^290255155 is an apocalyptic number.

290255155 is a deficient number, since it is larger than the sum of its proper divisors (61306877).

290255155 is a wasteful number, since it uses less digits than its factorization.

290255155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542645.

The product of its (nonzero) digits is 22500, while the sum is 34.

The square root of 290255155 is about 17036.8763275431. The cubic root of 290255155 is about 662.1046641012.

The spelling of 290255155 in words is "two hundred ninety million, two hundred fifty-five thousand, one hundred fifty-five".