25857074 has 4 divisors (see below), whose sum is σ = 38785614. Its totient is φ = 12928536.

The previous prime is 25857053. The next prime is 25857079. The reversal of 25857074 is 47075852.

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

It can be written as a sum of positive squares in only one way, i.e., 15249025 + 10608049 = 3905^2 + 3257^2 .

It is not an unprimeable number, because it can be changed into a prime (25857079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6464267 + ... + 6464270.

Almost surely, 2^25857074 is an apocalyptic number.

25857074 is a deficient number, since it is larger than the sum of its proper divisors (12928540).

25857074 is a wasteful number, since it uses less digits than its factorization.

25857074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12928539.

The product of its (nonzero) digits is 78400, while the sum is 38.

The square root of 25857074 is about 5084.9851523874. The cubic root of 25857074 is about 295.7057658723.

The spelling of 25857074 in words is "twenty-five million, eight hundred fifty-seven thousand, seventy-four".