25355069 has 2 divisors, whose sum is σ = 25355070. Its totient is φ = 25355068.

The previous prime is 25355051. The next prime is 25355081. The reversal of 25355069 is 96055352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25351225 + 3844 = 5035^2 + 62^2 .

It is a cyclic number.

It is not a de Polignac number, because 25355069 - 2¹² = 25350973 is a prime.

It is a super-2 number, since 2×25355069² = 1285759047989522, which contains 22 as substring.

It is equal to p_1586672 and since 25355069 and 1586672 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 (25351069) 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, 12677534 + 12677535.

It is an arithmetic number, because the mean of its divisors is an integer number (12677535).

Almost surely, 2^25355069 is an apocalyptic number.

It is an amenable number.

25355069 is a deficient number, since it is larger than the sum of its proper divisors (1).

25355069 is an equidigital number, since it uses as much as digits as its factorization.

25355069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40500, while the sum is 35.

The square root of 25355069 is about 5035.3817134354. The cubic root of 25355069 is about 293.7795754740.

It can be divided in two parts, 2535 and 5069, that multiplied together give a triangular number (12849915 = T₅₀₆₉).

The spelling of 25355069 in words is "twenty-five million, three hundred fifty-five thousand, sixty-nine".