23513455 has 16 divisors (see below), whose sum is σ = 32338944. Its totient is φ = 16077600.

The previous prime is 23513453. The next prime is 23513467. The reversal of 23513455 is 55431532.

It is not a de Polignac number, because 23513455 - 2¹ = 23513453 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 (23513453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15480 + ... + 16930.

It is an arithmetic number, because the mean of its divisors is an integer number (2021184).

Almost surely, 2^23513455 is an apocalyptic number.

23513455 is a deficient number, since it is larger than the sum of its proper divisors (8825489).

23513455 is a wasteful number, since it uses less digits than its factorization.

23513455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1926.

The product of its digits is 9000, while the sum is 28.

The square root of 23513455 is about 4849.0674361159. The cubic root of 23513455 is about 286.4873713579.

Adding to 23513455 its reverse (55431532), we get a palindrome (78944987).

The spelling of 23513455 in words is "twenty-three million, five hundred thirteen thousand, four hundred fifty-five".