23855011 has 2 divisors, whose sum is σ = 23855012. Its totient is φ = 23855010.

The previous prime is 23855009. The next prime is 23855021. The reversal of 23855011 is 11055832.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23855011 - 2¹ = 23855009 is a prime.

Together with 23855009, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (23855021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11927505 + 11927506.

It is an arithmetic number, because the mean of its divisors is an integer number (11927506).

Almost surely, 2^23855011 is an apocalyptic number.

23855011 is a deficient number, since it is larger than the sum of its proper divisors (1).

23855011 is an equidigital number, since it uses as much as digits as its factorization.

23855011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 23855011 is about 4884.1591906898. The cubic root of 23855011 is about 287.8678784088.

It can be divided in two parts, 2385 and 5011, that added together give a square (7396 = 86²).

The spelling of 23855011 in words is "twenty-three million, eight hundred fifty-five thousand, eleven".