23920255 has 16 divisors (see below), whose sum is σ = 29804544. Its totient is φ = 18416160.

The previous prime is 23920229. The next prime is 23920277. The reversal of 23920255 is 55202932.

It is not a de Polignac number, because 23920255 - 2²¹ = 21823103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14482 + ... + 16048.

It is an arithmetic number, because the mean of its divisors is an integer number (1862784).

Almost surely, 2^23920255 is an apocalyptic number.

23920255 is a deficient number, since it is larger than the sum of its proper divisors (5884289).

23920255 is a wasteful number, since it uses less digits than its factorization.

23920255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 23920255 is about 4890.8337734992. The cubic root of 23920255 is about 288.1300812514.

The spelling of 23920255 in words is "twenty-three million, nine hundred twenty thousand, two hundred fifty-five".