25315722 has 12 divisors (see below), whose sum is σ = 54850770. Its totient is φ = 8438568.

The previous prime is 25315699. The next prime is 25315727. The reversal of 25315722 is 22751352.

It can be written as a sum of positive squares in only one way, i.e., 25310961 + 4761 = 5031^2 + 69^2 .

It is not an unprimeable number, because it can be changed into a prime (25315727) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 703197 + ... + 703232.

Almost surely, 2^25315722 is an apocalyptic number.

25315722 is an abundant number, since it is smaller than the sum of its proper divisors (29535048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25315722 is a wasteful number, since it uses less digits than its factorization.

25315722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406437 (or 1406434 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 25315722 is about 5031.4731441199. The cubic root of 25315722 is about 293.6275305379.

The spelling of 25315722 in words is "twenty-five million, three hundred fifteen thousand, seven hundred twenty-two".