25980251 has 8 divisors (see below), whose sum is σ = 28381104. Its totient is φ = 23585920.

The previous prime is 25980247. The next prime is 25980281. The reversal of 25980251 is 15208952.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25980251 - 2² = 25980247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25980211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10991 + ... + 13143.

It is an arithmetic number, because the mean of its divisors is an integer number (3547638).

Almost surely, 2^25980251 is an apocalyptic number.

25980251 is a deficient number, since it is larger than the sum of its proper divisors (2400853).

25980251 is a wasteful number, since it uses less digits than its factorization.

25980251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3261.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 25980251 is about 5097.0825969372. The cubic root of 25980251 is about 296.1745797196.

The spelling of 25980251 in words is "twenty-five million, nine hundred eighty thousand, two hundred fifty-one".