22513030 has 16 divisors (see below), whose sum is σ = 40600080. Its totient is φ = 8988192.

The previous prime is 22513027. The next prime is 22513033. The reversal of 22513030 is 3031522.

It is an interprime number because it is at equal distance from previous prime (22513027) and next prime (22513033).

It is a junction number, because it is equal to n+sod(n) for n = 22512995 and 22513013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22513033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4372 + ... + 8008.

It is an arithmetic number, because the mean of its divisors is an integer number (2537505).

Almost surely, 2^22513030 is an apocalyptic number.

22513030 is a deficient number, since it is larger than the sum of its proper divisors (18087050).

22513030 is a wasteful number, since it uses less digits than its factorization.

22513030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4263.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 22513030 is about 4744.7897740574. The cubic root of 22513030 is about 282.3652945899.

Adding to 22513030 its reverse (3031522), we get a palindrome (25544552).

The spelling of 22513030 in words is "twenty-two million, five hundred thirteen thousand, thirty".