25775522 has 4 divisors (see below), whose sum is σ = 38663286. Its totient is φ = 12887760.

The previous prime is 25775513. The next prime is 25775527. The reversal of 25775522 is 22557752.

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

It can be written as a sum of positive squares in only one way, i.e., 21242881 + 4532641 = 4609^2 + 2129^2 .

It is not an unprimeable number, because it can be changed into a prime (25775527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6443879 + ... + 6443882.

Almost surely, 2^25775522 is an apocalyptic number.

25775522 is a deficient number, since it is larger than the sum of its proper divisors (12887764).

25775522 is a wasteful number, since it uses less digits than its factorization.

25775522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12887763.

The product of its digits is 49000, while the sum is 35.

The square root of 25775522 is about 5076.9599171158. The cubic root of 25775522 is about 295.3945577534.

The spelling of 25775522 in words is "twenty-five million, seven hundred seventy-five thousand, five hundred twenty-two".