25055999 has 2 divisors, whose sum is σ = 25056000. Its totient is φ = 25055998.

The previous prime is 25055983. The next prime is 25056013. The reversal of 25055999 is 99955052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25055999 - 2⁴ = 25055983 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25055929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12527999 + 12528000.

It is an arithmetic number, because the mean of its divisors is an integer number (12528000).

Almost surely, 2^25055999 is an apocalyptic number.

25055999 is a deficient number, since it is larger than the sum of its proper divisors (1).

25055999 is an equidigital number, since it uses as much as digits as its factorization.

25055999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 182250, while the sum is 44.

The square root of 25055999 is about 5005.5967676192. The cubic root of 25055999 is about 292.6199337715.

The spelling of 25055999 in words is "twenty-five million, fifty-five thousand, nine hundred ninety-nine".