23432505 has 16 divisors (see below), whose sum is σ = 37865664. Its totient is φ = 12372800.

The previous prime is 23432473. The next prime is 23432527. The reversal of 23432505 is 50523432.

It is not a de Polignac number, because 23432505 - 2⁵ = 23432473 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6219 + ... + 9248.

It is an arithmetic number, because the mean of its divisors is an integer number (2366604).

Almost surely, 2^23432505 is an apocalyptic number.

It is an amenable number.

23432505 is a deficient number, since it is larger than the sum of its proper divisors (14433159).

23432505 is a wasteful number, since it uses less digits than its factorization.

23432505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15576.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 23432505 is about 4840.7132738885. The cubic root of 23432505 is about 286.1582290690.

Adding to 23432505 its reverse (50523432), we get a palindrome (73955937).

The spelling of 23432505 in words is "twenty-three million, four hundred thirty-two thousand, five hundred five".