23290555 has 8 divisors (see below), whose sum is σ = 28041552. Its totient is φ = 18570528.

The previous prime is 23290529. The next prime is 23290571. The reversal of 23290555 is 55509232.

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 23290555 - 2¹⁷ = 23159483 is a prime.

It is a Duffinian number.

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, 6052 + ... + 9121.

It is an arithmetic number, because the mean of its divisors is an integer number (3505194).

Almost surely, 2^23290555 is an apocalyptic number.

23290555 is a deficient number, since it is larger than the sum of its proper divisors (4750997).

23290555 is a wasteful number, since it uses less digits than its factorization.

23290555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15485.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 23290555 is about 4826.0289058397. The cubic root of 23290555 is about 285.5792262259.

Adding to 23290555 its reverse (55509232), we get a palindrome (78799787).

The spelling of 23290555 in words is "twenty-three million, two hundred ninety thousand, five hundred fifty-five".