25696994 has 4 divisors (see below), whose sum is σ = 38545494. Its totient is φ = 12848496.

The previous prime is 25696969. The next prime is 25696999. The reversal of 25696994 is 49969652.

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., 19758025 + 5938969 = 4445^2 + 2437^2 .

It is not an unprimeable number, because it can be changed into a prime (25696999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6424247 + ... + 6424250.

Almost surely, 2^25696994 is an apocalyptic number.

25696994 is a deficient number, since it is larger than the sum of its proper divisors (12848500).

25696994 is a wasteful number, since it uses less digits than its factorization.

25696994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12848499.

The product of its digits is 1049760, while the sum is 50.

The square root of 25696994 is about 5069.2202556212. The cubic root of 25696994 is about 295.0942684461.

The spelling of 25696994 in words is "twenty-five million, six hundred ninety-six thousand, nine hundred ninety-four".