23555951 has 2 divisors, whose sum is σ = 23555952. Its totient is φ = 23555950.

The previous prime is 23555941. The next prime is 23555957. The reversal of 23555951 is 15955532.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23555951 - 2¹⁴ = 23539567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23555957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11777975 + 11777976.

It is an arithmetic number, because the mean of its divisors is an integer number (11777976).

Almost surely, 2^23555951 is an apocalyptic number.

23555951 is a deficient number, since it is larger than the sum of its proper divisors (1).

23555951 is an equidigital number, since it uses as much as digits as its factorization.

23555951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33750, while the sum is 35.

The square root of 23555951 is about 4853.4473315366. The cubic root of 23555951 is about 286.6598575692.

The spelling of 23555951 in words is "twenty-three million, five hundred fifty-five thousand, nine hundred fifty-one".