220902563 has 4 divisors (see below), whose sum is σ = 252460080. Its totient is φ = 189345048.

The previous prime is 220902523. The next prime is 220902587. The reversal of 220902563 is 365209022.

220902563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 365209022 = 2 ⋅182604511.

It is a cyclic number.

It is not a de Polignac number, because 220902563 - 2¹⁰ = 220901539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220902503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15778748 + ... + 15778761.

It is an arithmetic number, because the mean of its divisors is an integer number (63115020).

Almost surely, 2^220902563 is an apocalyptic number.

220902563 is a deficient number, since it is larger than the sum of its proper divisors (31557517).

220902563 is an equidigital number, since it uses as much as digits as its factorization.

220902563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31557516.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 220902563 is about 14862.7912250694. The cubic root of 220902563 is about 604.5054930547.

The spelling of 220902563 in words is "two hundred twenty million, nine hundred two thousand, five hundred sixty-three".