25985522 has 4 divisors (see below), whose sum is σ = 38978286. Its totient is φ = 12992760.

The previous prime is 25985489. The next prime is 25985551. The reversal of 25985522 is 22558952.

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., 14295961 + 11689561 = 3781^2 + 3419^2 .

It is a super-2 number, since 2×25985522² = 1350494707224968, which contains 22 as substring.

It is an unprimeable number.

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, 6496379 + ... + 6496382.

Almost surely, 2^25985522 is an apocalyptic number.

25985522 is a deficient number, since it is larger than the sum of its proper divisors (12992764).

25985522 is a wasteful number, since it uses less digits than its factorization.

25985522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12992763.

The product of its digits is 72000, while the sum is 38.

The square root of 25985522 is about 5097.5996311990. The cubic root of 25985522 is about 296.1946081462.

The spelling of 25985522 in words is "twenty-five million, nine hundred eighty-five thousand, five hundred twenty-two".