25109057 has 2 divisors, whose sum is σ = 25109058. Its totient is φ = 25109056.

The previous prime is 25109053. The next prime is 25109069. The reversal of 25109057 is 75090152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14409616 + 10699441 = 3796^2 + 3271^2 .

It is a cyclic number.

It is not a de Polignac number, because 25109057 - 2² = 25109053 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25109053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12554528 + 12554529.

It is an arithmetic number, because the mean of its divisors is an integer number (12554529).

Almost surely, 2^25109057 is an apocalyptic number.

It is an amenable number.

25109057 is a deficient number, since it is larger than the sum of its proper divisors (1).

25109057 is an equidigital number, since it uses as much as digits as its factorization.

25109057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 25109057 is about 5010.8938324415. The cubic root of 25109057 is about 292.8263365346.

The spelling of 25109057 in words is "twenty-five million, one hundred nine thousand, fifty-seven".