25229956 has 6 divisors (see below), whose sum is σ = 44152430. Its totient is φ = 12614976.

The previous prime is 25229951. The next prime is 25229957. The reversal of 25229956 is 65992252.

It can be written as a sum of positive squares in only one way, i.e., 19660356 + 5569600 = 4434^2 + 2360^2 .

It is not an unprimeable number, because it can be changed into a prime (25229951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3153741 + ... + 3153748.

Almost surely, 2^25229956 is an apocalyptic number.

It is an amenable number.

25229956 is a deficient number, since it is larger than the sum of its proper divisors (18922474).

25229956 is a wasteful number, since it uses less digits than its factorization.

25229956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6307493 (or 6307491 counting only the distinct ones).

The product of its digits is 97200, while the sum is 40.

The square root of 25229956 is about 5022.9429620492. The cubic root of 25229956 is about 293.2955661891.

The spelling of 25229956 in words is "twenty-five million, two hundred twenty-nine thousand, nine hundred fifty-six".