563220155 has 16 divisors (see below), whose sum is σ = 686859264. Its totient is φ = 443292000.

The previous prime is 563220131. The next prime is 563220181. The reversal of 563220155 is 551022365.

It is a happy number.

It is not a de Polignac number, because 563220155 - 2¹⁶ = 563154619 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101462 + ... + 106868.

It is an arithmetic number, because the mean of its divisors is an integer number (42928704).

Almost surely, 2^563220155 is an apocalyptic number.

563220155 is a deficient number, since it is larger than the sum of its proper divisors (123639109).

563220155 is a wasteful number, since it uses less digits than its factorization.

563220155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5746.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 563220155 is about 23732.2597954767. The cubic root of 563220155 is about 825.8339433867.

The spelling of 563220155 in words is "five hundred sixty-three million, two hundred twenty thousand, one hundred fifty-five".