23534505 has 12 divisors (see below), whose sum is σ = 40793220. Its totient is φ = 12551712.

The previous prime is 23534503. The next prime is 23534509. The reversal of 23534505 is 50543532.

It can be written as a sum of positive squares in 2 ways, for example, as 8696601 + 14837904 = 2949^2 + 3852^2 .

It is not a de Polignac number, because 23534505 - 2¹ = 23534503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23534501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 261450 + ... + 261539.

It is an arithmetic number, because the mean of its divisors is an integer number (3399435).

Almost surely, 2^23534505 is an apocalyptic number.

It is an amenable number.

23534505 is a deficient number, since it is larger than the sum of its proper divisors (17258715).

23534505 is a wasteful number, since it uses less digits than its factorization.

23534505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523000 (or 522997 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 23534505 is about 4851.2374709964. The cubic root of 23534505 is about 286.5728367574.

The spelling of 23534505 in words is "twenty-three million, five hundred thirty-four thousand, five hundred five".