25267973 has 2 divisors, whose sum is σ = 25267974. Its totient is φ = 25267972.

The previous prime is 25267951. The next prime is 25267981. The reversal of 25267973 is 37976252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19731364 + 5536609 = 4442^2 + 2353^2 .

It is a cyclic number.

It is not a de Polignac number, because 25267973 - 2¹⁸ = 25005829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25267973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25267993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12633986 + 12633987.

It is an arithmetic number, because the mean of its divisors is an integer number (12633987).

Almost surely, 2^25267973 is an apocalyptic number.

It is an amenable number.

25267973 is a deficient number, since it is larger than the sum of its proper divisors (1).

25267973 is an equidigital number, since it uses as much as digits as its factorization.

25267973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 158760, while the sum is 41.

The square root of 25267973 is about 5026.7258727725. The cubic root of 25267973 is about 293.4428067915.

The spelling of 25267973 in words is "twenty-five million, two hundred sixty-seven thousand, nine hundred seventy-three".