23456533 has 4 divisors (see below), whose sum is σ = 23531788. Its totient is φ = 23381280.

The previous prime is 23456509. The next prime is 23456539. The reversal of 23456533 is 33565432.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1385329 + 22071204 = 1177^2 + 4698^2 .

It is a cyclic number.

It is not a de Polignac number, because 23456533 - 2⁵ = 23456501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23456495 and 23456504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23456539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37158 + ... + 37783.

It is an arithmetic number, because the mean of its divisors is an integer number (5882947).

Almost surely, 2^23456533 is an apocalyptic number.

It is an amenable number.

23456533 is a deficient number, since it is larger than the sum of its proper divisors (75255).

23456533 is an equidigital number, since it uses as much as digits as its factorization.

23456533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75254.

The product of its digits is 32400, while the sum is 31.

The square root of 23456533 is about 4843.1945036308. The cubic root of 23456533 is about 286.2560057981.

The spelling of 23456533 in words is "twenty-three million, four hundred fifty-six thousand, five hundred thirty-three".