23155508 has 12 divisors (see below), whose sum is σ = 40881540. Its totient is φ = 11475072.

The previous prime is 23155507. The next prime is 23155519. The reversal of 23155508 is 80555132.

It can be written as a sum of positive squares in 2 ways, for example, as 1737124 + 21418384 = 1318^2 + 4628^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23155501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25163 + ... + 26066.

It is an arithmetic number, because the mean of its divisors is an integer number (3406795).

Almost surely, 2^23155508 is an apocalyptic number.

It is an amenable number.

23155508 is a deficient number, since it is larger than the sum of its proper divisors (17726032).

23155508 is a wasteful number, since it uses less digits than its factorization.

23155508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51346 (or 51344 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 23155508 is about 4812.0170407013. The cubic root of 23155508 is about 285.0261923194.

The spelling of 23155508 in words is "twenty-three million, one hundred fifty-five thousand, five hundred eight".