23264521 has 8 divisors (see below), whose sum is σ = 26743104. Its totient is φ = 19824720.

The previous prime is 23264503. The next prime is 23264543. The reversal of 23264521 is 12546232.

23264521 = T₁₄₇₈ + T₁₄₇₉ + ... + T₁₄₉₈.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23264521 - 2⁷ = 23264393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23264221) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8395 + ... + 10816.

It is an arithmetic number, because the mean of its divisors is an integer number (3342888).

Almost surely, 2^23264521 is an apocalyptic number.

It is an amenable number.

23264521 is a deficient number, since it is larger than the sum of its proper divisors (3478583).

23264521 is a wasteful number, since it uses less digits than its factorization.

23264521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19391.

The product of its digits is 2880, while the sum is 25.

The square root of 23264521 is about 4823.3309030171. The cubic root of 23264521 is about 285.4727804803.

The spelling of 23264521 in words is "twenty-three million, two hundred sixty-four thousand, five hundred twenty-one".