25980761 has 4 divisors (see below), whose sum is σ = 26027472. Its totient is φ = 25934052.

The previous prime is 25980751. The next prime is 25980763. The reversal of 25980761 is 16708952.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25980761 - 2¹⁸ = 25718617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25980763) 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, 22511 + ... + 23636.

It is an arithmetic number, because the mean of its divisors is an integer number (6506868).

Almost surely, 2^25980761 is an apocalyptic number.

It is an amenable number.

25980761 is a deficient number, since it is larger than the sum of its proper divisors (46711).

25980761 is an equidigital number, since it uses as much as digits as its factorization.

25980761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46710.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 25980761 is about 5097.1326253100. The cubic root of 25980761 is about 296.1765177051.

The spelling of 25980761 in words is "twenty-five million, nine hundred eighty thousand, seven hundred sixty-one".