25065013 has 2 divisors, whose sum is σ = 25065014. Its totient is φ = 25065012.

The previous prime is 25065011. The next prime is 25065017. The reversal of 25065013 is 31056052.

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., 23794884 + 1270129 = 4878^2 + 1127^2 .

It is a cyclic number.

It is not a de Polignac number, because 25065013 - 2¹ = 25065011 is a prime.

Together with 25065011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25065011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12532506 + 12532507.

It is an arithmetic number, because the mean of its divisors is an integer number (12532507).

Almost surely, 2^25065013 is an apocalyptic number.

It is an amenable number.

25065013 is a deficient number, since it is larger than the sum of its proper divisors (1).

25065013 is an equidigital number, since it uses as much as digits as its factorization.

25065013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 25065013 is about 5006.4970787967. The cubic root of 25065013 is about 292.6550199777.

It can be divided in two parts, 2506 and 5013, that multiplied together give a triangular number (12562578 = T₅₀₁₂).

The spelling of 25065013 in words is "twenty-five million, sixty-five thousand, thirteen".