25770571 has 4 divisors (see below), whose sum is σ = 25792000. Its totient is φ = 25749144.

The previous prime is 25770553. The next prime is 25770583. The reversal of 25770571 is 17507752.

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

It is a cyclic number.

It is not a de Polignac number, because 25770571 - 2⁵ = 25770539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25770541) 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, 8796 + ... + 11353.

It is an arithmetic number, because the mean of its divisors is an integer number (6448000).

Almost surely, 2^25770571 is an apocalyptic number.

25770571 is a deficient number, since it is larger than the sum of its proper divisors (21429).

25770571 is a wasteful number, since it uses less digits than its factorization.

25770571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21428.

The product of its (nonzero) digits is 17150, while the sum is 34.

The square root of 25770571 is about 5076.4722987524. The cubic root of 25770571 is about 295.3756432693.

The spelling of 25770571 in words is "twenty-five million, seven hundred seventy thousand, five hundred seventy-one".