23515252 has 12 divisors (see below), whose sum is σ = 41928516. Its totient is φ = 11535680.

The previous prime is 23515249. The next prime is 23515253. The reversal of 23515252 is 25251532.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5588496 + 17926756 = 2364^2 + 4234^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23515253) 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, 55249 + ... + 55672.

It is an arithmetic number, because the mean of its divisors is an integer number (3494043).

Almost surely, 2^23515252 is an apocalyptic number.

It is an amenable number.

23515252 is a deficient number, since it is larger than the sum of its proper divisors (18413264).

23515252 is a wasteful number, since it uses less digits than its factorization.

23515252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110978 (or 110976 counting only the distinct ones).

The product of its digits is 3000, while the sum is 25.

The square root of 23515252 is about 4849.2527259362. The cubic root of 23515252 is about 286.4946693736.

Adding to 23515252 its reverse (25251532), we get a palindrome (48766784).

The spelling of 23515252 in words is "twenty-three million, five hundred fifteen thousand, two hundred fifty-two".