25772465 has 4 divisors (see below), whose sum is σ = 30926964. Its totient is φ = 20617968.

The previous prime is 25772423. The next prime is 25772533. The reversal of 25772465 is 56427752.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13184161 + 12588304 = 3631^2 + 3548^2 .

It is a cyclic number.

It is not a de Polignac number, because 25772465 - 2¹⁶ = 25706929 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2577242 + ... + 2577251.

It is an arithmetic number, because the mean of its divisors is an integer number (7731741).

Almost surely, 2^25772465 is an apocalyptic number.

It is an amenable number.

25772465 is a deficient number, since it is larger than the sum of its proper divisors (5154499).

25772465 is an equidigital number, since it uses as much as digits as its factorization.

25772465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5154498.

The product of its digits is 117600, while the sum is 38.

The square root of 25772465 is about 5076.6588421914. The cubic root of 25772465 is about 295.3828792720.

The spelling of 25772465 in words is "twenty-five million, seven hundred seventy-two thousand, four hundred sixty-five".