25262569 has 2 divisors, whose sum is σ = 25262570. Its totient is φ = 25262568.

The previous prime is 25262557. The next prime is 25262621. The reversal of 25262569 is 96526252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24601600 + 660969 = 4960^2 + 813^2 .

It is a cyclic number.

It is not a de Polignac number, because 25262569 - 2⁵ = 25262537 is a prime.

It is a super-2 number, since 2×25262569² = 1276394784959522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25262869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12631284 + 12631285.

It is an arithmetic number, because the mean of its divisors is an integer number (12631285).

Almost surely, 2^25262569 is an apocalyptic number.

It is an amenable number.

25262569 is a deficient number, since it is larger than the sum of its proper divisors (1).

25262569 is an equidigital number, since it uses as much as digits as its factorization.

25262569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 37.

The square root of 25262569 is about 5026.1883172042. The cubic root of 25262569 is about 293.4218860000.

The spelling of 25262569 in words is "twenty-five million, two hundred sixty-two thousand, five hundred sixty-nine".