23530516 has 24 divisors (see below), whose sum is σ = 44430120. Its totient is φ = 10862592.

The previous prime is 23530511. The next prime is 23530547. The reversal of 23530516 is 61503532.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3763600 + 19766916 = 1940^2 + 4446^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23530511) 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, 340 + ... + 6868.

It is an arithmetic number, because the mean of its divisors is an integer number (1851255).

Almost surely, 2^23530516 is an apocalyptic number.

It is an amenable number.

23530516 is a deficient number, since it is larger than the sum of its proper divisors (20899604).

23530516 is a wasteful number, since it uses less digits than its factorization.

23530516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6603 (or 6601 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 23530516 is about 4850.8263213601. The cubic root of 23530516 is about 286.5566448775.

The spelling of 23530516 in words is "twenty-three million, five hundred thirty thousand, five hundred sixteen".