25269457 has 2 divisors, whose sum is σ = 25269458. Its totient is φ = 25269456.

The previous prime is 25269427. The next prime is 25269473. The reversal of 25269457 is 75496252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25040016 + 229441 = 5004^2 + 479^2 .

It is a cyclic number.

It is not a de Polignac number, because 25269457 - 2⁷ = 25269329 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25269427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12634728 + 12634729.

It is an arithmetic number, because the mean of its divisors is an integer number (12634729).

Almost surely, 2^25269457 is an apocalyptic number.

It is an amenable number.

25269457 is a deficient number, since it is larger than the sum of its proper divisors (1).

25269457 is an equidigital number, since it uses as much as digits as its factorization.

25269457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 40.

The square root of 25269457 is about 5026.8734815987. The cubic root of 25269457 is about 293.4485513573.

The spelling of 25269457 in words is "twenty-five million, two hundred sixty-nine thousand, four hundred fifty-seven".