2220523 has 4 divisors (see below), whose sum is σ = 2351160. Its totient is φ = 2089888.

The previous prime is 2220521. The next prime is 2220527. The reversal of 2220523 is 3250222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2220523 - 2¹ = 2220521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2220497 and 2220506.

It is not an unprimeable number, because it can be changed into a prime (2220521) 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, 65293 + ... + 65326.

It is an arithmetic number, because the mean of its divisors is an integer number (587790).

2^2220523 is an apocalyptic number.

2220523 is a deficient number, since it is larger than the sum of its proper divisors (130637).

2220523 is a wasteful number, since it uses less digits than its factorization.

2220523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130636.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 2220523 is about 1490.1419395480. The cubic root of 2220523 is about 130.4623184072.

Adding to 2220523 its reverse (3250222), we get a palindrome (5470745).

The spelling of 2220523 in words is "two million, two hundred twenty thousand, five hundred twenty-three".