23564545 has 16 divisors (see below), whose sum is σ = 29393280. Its totient is φ = 18121600.

The previous prime is 23564543. The next prime is 23564551. The reversal of 23564545 is 54546532.

It is not a de Polignac number, because 23564545 - 2¹ = 23564543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23564545.

It is not an unprimeable number, because it can be changed into a prime (23564543) 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, 13746 + ... + 15364.

It is an arithmetic number, because the mean of its divisors is an integer number (1837080).

Almost surely, 2^23564545 is an apocalyptic number.

It is an amenable number.

23564545 is a deficient number, since it is larger than the sum of its proper divisors (5828735).

23564545 is a wasteful number, since it uses less digits than its factorization.

23564545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1736.

The product of its digits is 72000, while the sum is 34.

The square root of 23564545 is about 4854.3326008835. The cubic root of 23564545 is about 286.6947143701.

The spelling of 23564545 in words is "twenty-three million, five hundred sixty-four thousand, five hundred forty-five".