25255973 has 2 divisors, whose sum is σ = 25255974. Its totient is φ = 25255972.

The previous prime is 25255963. The next prime is 25256003. The reversal of 25255973 is 37955252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14615329 + 10640644 = 3823^2 + 3262^2 .

It is a cyclic number.

It is not a de Polignac number, because 25255973 - 2⁴ = 25255957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25255903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12627986 + 12627987.

It is an arithmetic number, because the mean of its divisors is an integer number (12627987).

Almost surely, 2^25255973 is an apocalyptic number.

It is an amenable number.

25255973 is a deficient number, since it is larger than the sum of its proper divisors (1).

25255973 is an equidigital number, since it uses as much as digits as its factorization.

25255973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94500, while the sum is 38.

The square root of 25255973 is about 5025.5321111301. The cubic root of 25255973 is about 293.3963465120.

The spelling of 25255973 in words is "twenty-five million, two hundred fifty-five thousand, nine hundred seventy-three".