25222577 has 4 divisors (see below), whose sum is σ = 26706276. Its totient is φ = 23738880.

The previous prime is 25222573. The next prime is 25222583. The reversal of 25222577 is 77522252.

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 21077281 + 4145296 = 4591^2 + 2036^2 .

It is a cyclic number.

It is not a de Polignac number, because 25222577 - 2² = 25222573 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25222573) 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, 741824 + ... + 741857.

It is an arithmetic number, because the mean of its divisors is an integer number (6676569).

Almost surely, 2^25222577 is an apocalyptic number.

It is an amenable number.

25222577 is a deficient number, since it is larger than the sum of its proper divisors (1483699).

25222577 is a wasteful number, since it uses less digits than its factorization.

25222577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483698.

The product of its digits is 19600, while the sum is 32.

The square root of 25222577 is about 5022.2083787911. The cubic root of 25222577 is about 293.2669700366.

The spelling of 25222577 in words is "twenty-five million, two hundred twenty-two thousand, five hundred seventy-seven".