25900947 has 6 divisors (see below), whose sum is σ = 37412492. Its totient is φ = 17267292.

The previous prime is 25900913. The next prime is 25900949. The reversal of 25900947 is 74900952.

It is not a de Polignac number, because 25900947 - 2¹⁵ = 25868179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25900949) 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, 1438933 + ... + 1438950.

Almost surely, 2^25900947 is an apocalyptic number.

25900947 is a deficient number, since it is larger than the sum of its proper divisors (11511545).

25900947 is a wasteful number, since it uses less digits than its factorization.

25900947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2877889 (or 2877886 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 25900947 is about 5089.2972992349. The cubic root of 25900947 is about 295.8729176593.

The spelling of 25900947 in words is "twenty-five million, nine hundred thousand, nine hundred forty-seven".