23531485 has 16 divisors (see below), whose sum is σ = 30205872. Its totient is φ = 17536000.

The previous prime is 23531479. The next prime is 23531489. The reversal of 23531485 is 58413532.

It can be written as a sum of positive squares in 8 ways, for example, as 1610361 + 21921124 = 1269^2 + 4682^2 .

It is not a de Polignac number, because 23531485 - 2⁷ = 23531357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23531489) 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, 7215 + ... + 9955.

It is an arithmetic number, because the mean of its divisors is an integer number (1887867).

Almost surely, 2^23531485 is an apocalyptic number.

It is an amenable number.

23531485 is a deficient number, since it is larger than the sum of its proper divisors (6674387).

23531485 is a wasteful number, since it uses less digits than its factorization.

23531485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2864.

The product of its digits is 14400, while the sum is 31.

The square root of 23531485 is about 4850.9262002220. The cubic root of 23531485 is about 286.5605783453.

The spelling of 23531485 in words is "twenty-three million, five hundred thirty-one thousand, four hundred eighty-five".