25000069 has 2 divisors, whose sum is σ = 25000070. Its totient is φ = 25000068.

The previous prime is 25000033. The next prime is 25000109. The reversal of 25000069 is 96000052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24383844 + 616225 = 4938^2 + 785^2 .

It is a cyclic number.

It is not a de Polignac number, because 25000069 - 2¹¹ = 24998021 is a prime.

It is a super-2 number, since 2×25000069² = 1250006900009522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25000009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12500034 + 12500035.

It is an arithmetic number, because the mean of its divisors is an integer number (12500035).

Almost surely, 2^25000069 is an apocalyptic number.

It is an amenable number.

25000069 is a deficient number, since it is larger than the sum of its proper divisors (1).

25000069 is an equidigital number, since it uses as much as digits as its factorization.

25000069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 25000069 is about 5000.0068999952. The cubic root of 25000069 is about 292.4020428307.

Adding to 25000069 its reverse (96000052), we get a palindrome (121000121).

The spelling of 25000069 in words is "twenty-five million, sixty-nine", and thus it is an aban number and an uban number.