23485511 has 4 divisors (see below), whose sum is σ = 26840592. Its totient is φ = 20130432.

The previous prime is 23485489. The next prime is 23485513. The reversal of 23485511 is 11558432.

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

It is a de Polignac number, because none of the positive numbers 2^k-23485511 is a prime.

It is a super-2 number, since 2×23485511² = 1103138453862242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23485513) 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 3 ways as a sum of consecutive naturals, for example, 1677530 + ... + 1677543.

It is an arithmetic number, because the mean of its divisors is an integer number (6710148).

Almost surely, 2^23485511 is an apocalyptic number.

23485511 is a deficient number, since it is larger than the sum of its proper divisors (3355081).

23485511 is an equidigital number, since it uses as much as digits as its factorization.

23485511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3355080.

The product of its digits is 4800, while the sum is 29.

The square root of 23485511 is about 4846.1852007533. The cubic root of 23485511 is about 286.3738366951.

The spelling of 23485511 in words is "twenty-three million, four hundred eighty-five thousand, five hundred eleven".