25258069 has 2 divisors, whose sum is σ = 25258070. Its totient is φ = 25258068.

The previous prime is 25258067. The next prime is 25258081. The reversal of 25258069 is 96085252.

25258069 = T₄₁₀₂ + T₄₁₀₃ + T₄₁₀₄.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24383844 + 874225 = 4938^2 + 935^2 .

It is a cyclic number.

It is not a de Polignac number, because 25258069 - 2¹ = 25258067 is a prime.

It is a super-2 number, since 2×25258069² = 1275940099217522, which contains 22 as substring.

Together with 25258067, it forms a pair of twin primes.

It is equal to p_1580977 and since 25258069 and 1580977 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25258067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12629034 + 12629035.

It is an arithmetic number, because the mean of its divisors is an integer number (12629035).

Almost surely, 2^25258069 is an apocalyptic number.

25258069 is the 4104-th centered triangular number.

It is an amenable number.

25258069 is a deficient number, since it is larger than the sum of its proper divisors (1).

25258069 is an equidigital number, since it uses as much as digits as its factorization.

25258069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 25258069 is about 5025.7406419353. The cubic root of 25258069 is about 293.4044626348.

The spelling of 25258069 in words is "twenty-five million, two hundred fifty-eight thousand, sixty-nine".