23385531 has 8 divisors (see below), whose sum is σ = 33579280. Its totient is φ = 14391072.

The previous prime is 23385497. The next prime is 23385533. The reversal of 23385531 is 13558332.

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

It is not a de Polignac number, because 23385531 - 2²³ = 14996923 is a prime.

It is a super-2 number, since 2×23385531² = 1093766120303922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23385533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299776 + ... + 299853.

It is an arithmetic number, because the mean of its divisors is an integer number (4197410).

Almost surely, 2^23385531 is an apocalyptic number.

23385531 is a deficient number, since it is larger than the sum of its proper divisors (10193749).

23385531 is a wasteful number, since it uses less digits than its factorization.

23385531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599645.

The product of its digits is 10800, while the sum is 30.

The square root of 23385531 is about 4835.8588689084. The cubic root of 23385531 is about 285.9668853374.

The spelling of 23385531 in words is "twenty-three million, three hundred eighty-five thousand, five hundred thirty-one".