25957793 has 4 divisors (see below), whose sum is σ = 27484740. Its totient is φ = 24430848.

The previous prime is 25957787. The next prime is 25957847. The reversal of 25957793 is 39775952.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7441984 + 18515809 = 2728^2 + 4303^2 .

It is a cyclic number.

It is not a de Polignac number, because 25957793 - 2⁸ = 25957537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25957703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 763448 + ... + 763481.

It is an arithmetic number, because the mean of its divisors is an integer number (6871185).

Almost surely, 2^25957793 is an apocalyptic number.

It is an amenable number.

25957793 is a deficient number, since it is larger than the sum of its proper divisors (1526947).

25957793 is a wasteful number, since it uses less digits than its factorization.

25957793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526946.

The product of its digits is 595350, while the sum is 47.

The square root of 25957793 is about 5094.8790957195. The cubic root of 25957793 is about 296.0892147989.

The spelling of 25957793 in words is "twenty-five million, nine hundred fifty-seven thousand, seven hundred ninety-three".