25322642 has 4 divisors (see below), whose sum is σ = 37983966. Its totient is φ = 12661320.

The previous prime is 25322641. The next prime is 25322651. The reversal of 25322642 is 24622352.

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., 25110121 + 212521 = 5011^2 + 461^2 .

It is not an unprimeable number, because it can be changed into a prime (25322641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6330659 + ... + 6330662.

Almost surely, 2^25322642 is an apocalyptic number.

25322642 is a deficient number, since it is larger than the sum of its proper divisors (12661324).

25322642 is a wasteful number, since it uses less digits than its factorization.

25322642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12661323.

The product of its digits is 5760, while the sum is 26.

The square root of 25322642 is about 5032.1607684970. The cubic root of 25322642 is about 293.6542822590.

Adding to 25322642 its reverse (24622352), we get a palindrome (49944994).

The spelling of 25322642 in words is "twenty-five million, three hundred twenty-two thousand, six hundred forty-two".