23432455 has 4 divisors (see below), whose sum is σ = 28118952. Its totient is φ = 18745960.

The previous prime is 23432447. The next prime is 23432467. The reversal of 23432455 is 55423432.

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

It is not a de Polignac number, because 23432455 - 2³ = 23432447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2343241 + ... + 2343250.

It is an arithmetic number, because the mean of its divisors is an integer number (7029738).

Almost surely, 2^23432455 is an apocalyptic number.

23432455 is a deficient number, since it is larger than the sum of its proper divisors (4686497).

23432455 is an equidigital number, since it uses as much as digits as its factorization.

23432455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4686496.

The product of its digits is 14400, while the sum is 28.

The square root of 23432455 is about 4840.7081093576. The cubic root of 23432455 is about 286.1580255351.

Adding to 23432455 its reverse (55423432), we get a palindrome (78855887).

The spelling of 23432455 in words is "twenty-three million, four hundred thirty-two thousand, four hundred fifty-five".