25901923 has 2 divisors, whose sum is σ = 25901924. Its totient is φ = 25901922.

The previous prime is 25901903. The next prime is 25901927. The reversal of 25901923 is 32910952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25901923 - 2⁵ = 25901891 is a prime.

It is equal to p_1618780 and since 25901923 and 1618780 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (25901927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12950961 + 12950962.

It is an arithmetic number, because the mean of its divisors is an integer number (12950962).

Almost surely, 2^25901923 is an apocalyptic number.

25901923 is a deficient number, since it is larger than the sum of its proper divisors (1).

25901923 is an equidigital number, since it uses as much as digits as its factorization.

25901923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 25901923 is about 5089.3931858327. The cubic root of 25901923 is about 295.8766339757.

The spelling of 25901923 in words is "twenty-five million, nine hundred one thousand, nine hundred twenty-three".