25857059 has 4 divisors (see below), whose sum is σ = 25875480. Its totient is φ = 25838640.

The previous prime is 25857053. The next prime is 25857079. The reversal of 25857059 is 95075852.

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 25857059 - 2¹² = 25852963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25857053) 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, 6914 + ... + 9975.

It is an arithmetic number, because the mean of its divisors is an integer number (6468870).

Almost surely, 2^25857059 is an apocalyptic number.

25857059 is a deficient number, since it is larger than the sum of its proper divisors (18421).

25857059 is a wasteful number, since it uses less digits than its factorization.

25857059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18420.

The product of its (nonzero) digits is 126000, while the sum is 41.

The square root of 25857059 is about 5084.9836774566. The cubic root of 25857059 is about 295.7057086915.

The spelling of 25857059 in words is "twenty-five million, eight hundred fifty-seven thousand, fifty-nine".