25857701 has 2 divisors, whose sum is σ = 25857702. Its totient is φ = 25857700.

The previous prime is 25857691. The next prime is 25857707. The reversal of 25857701 is 10775852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25745476 + 112225 = 5074^2 + 335^2 .

It is a cyclic number.

It is not a de Polignac number, because 25857701 - 2¹⁴ = 25841317 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25857707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12928850 + 12928851.

It is an arithmetic number, because the mean of its divisors is an integer number (12928851).

Almost surely, 2^25857701 is an apocalyptic number.

It is an amenable number.

25857701 is a deficient number, since it is larger than the sum of its proper divisors (1).

25857701 is an equidigital number, since it uses as much as digits as its factorization.

25857701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19600, while the sum is 35.

The square root of 25857701 is about 5085.0468041110. The cubic root of 25857701 is about 295.7081560115.

The spelling of 25857701 in words is "twenty-five million, eight hundred fifty-seven thousand, seven hundred one".