23615255 has 4 divisors (see below), whose sum is σ = 28338312. Its totient is φ = 18892200.

The previous prime is 23615237. The next prime is 23615257. The reversal of 23615255 is 55251632.

It is a happy number.

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

It is not a de Polignac number, because 23615255 - 2⁸ = 23614999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23615257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2361521 + ... + 2361530.

It is an arithmetic number, because the mean of its divisors is an integer number (7084578).

Almost surely, 2^23615255 is an apocalyptic number.

23615255 is a deficient number, since it is larger than the sum of its proper divisors (4723057).

23615255 is an equidigital number, since it uses as much as digits as its factorization.

23615255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4723056.

The product of its digits is 9000, while the sum is 29.

The square root of 23615255 is about 4859.5529629792. The cubic root of 23615255 is about 286.9002190495.

Adding to 23615255 its reverse (55251632), we get a palindrome (78866887).

The spelling of 23615255 in words is "twenty-three million, six hundred fifteen thousand, two hundred fifty-five".