25632946 has 4 divisors (see below), whose sum is σ = 38449422. Its totient is φ = 12816472.

The previous prime is 25632911. The next prime is 25632947. The reversal of 25632946 is 64923652.

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., 14907321 + 10725625 = 3861^2 + 3275^2 .

It is not an unprimeable number, because it can be changed into a prime (25632947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6408235 + ... + 6408238.

Almost surely, 2^25632946 is an apocalyptic number.

25632946 is a deficient number, since it is larger than the sum of its proper divisors (12816476).

25632946 is a wasteful number, since it uses less digits than its factorization.

25632946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12816475.

The product of its digits is 77760, while the sum is 37.

The square root of 25632946 is about 5062.8989719330. The cubic root of 25632946 is about 294.8488970489.

The spelling of 25632946 in words is "twenty-five million, six hundred thirty-two thousand, nine hundred forty-six".