25418069 has 2 divisors, whose sum is σ = 25418070. Its totient is φ = 25418068.

The previous prime is 25418051. The next prime is 25418083. The reversal of 25418069 is 96081452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23280625 + 2137444 = 4825^2 + 1462^2 .

It is a cyclic number.

It is not a de Polignac number, because 25418069 - 2⁸ = 25417813 is a prime.

It is a super-2 number, since 2×25418069² = 1292156463377522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25418039) 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, 12709034 + 12709035.

It is an arithmetic number, because the mean of its divisors is an integer number (12709035).

Almost surely, 2^25418069 is an apocalyptic number.

It is an amenable number.

25418069 is a deficient number, since it is larger than the sum of its proper divisors (1).

25418069 is an equidigital number, since it uses as much as digits as its factorization.

25418069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 25418069 is about 5041.6335646296. The cubic root of 25418069 is about 294.0226932674.

The spelling of 25418069 in words is "twenty-five million, four hundred eighteen thousand, sixty-nine".