25772797 has 4 divisors (see below), whose sum is σ = 27129280. Its totient is φ = 24416316.

The previous prime is 25772783. The next prime is 25772801. The reversal of 25772797 is 79727752.

It is a happy number.

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 25772797 - 2²³ = 17384189 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 (25772737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 678213 + ... + 678250.

It is an arithmetic number, because the mean of its divisors is an integer number (6782320).

Almost surely, 2^25772797 is an apocalyptic number.

It is an amenable number.

25772797 is a deficient number, since it is larger than the sum of its proper divisors (1356483).

25772797 is a wasteful number, since it uses less digits than its factorization.

25772797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356482.

The product of its digits is 432180, while the sum is 46.

The square root of 25772797 is about 5076.6915407576. The cubic root of 25772797 is about 295.3841476372.

It can be divided in two parts, 25772 and 797, that added together give a square (26569 = 163²).

The spelling of 25772797 in words is "twenty-five million, seven hundred seventy-two thousand, seven hundred ninety-seven".