25057271 has 4 divisors (see below), whose sum is σ = 25071600. Its totient is φ = 25042944.

The previous prime is 25057259. The next prime is 25057289. The reversal of 25057271 is 17275052.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25057271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25057211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4106 + ... + 8183.

It is an arithmetic number, because the mean of its divisors is an integer number (6267900).

Almost surely, 2^25057271 is an apocalyptic number.

25057271 is a deficient number, since it is larger than the sum of its proper divisors (14329).

25057271 is a wasteful number, since it uses less digits than its factorization.

25057271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14328.

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 25057271 is about 5005.7238237841. The cubic root of 25057271 is about 292.6248854301.

The spelling of 25057271 in words is "twenty-five million, fifty-seven thousand, two hundred seventy-one".