25994133 has 12 divisors (see below), whose sum is σ = 40960608. Its totient is φ = 15753960.

The previous prime is 25994119. The next prime is 25994153. The reversal of 25994133 is 33149952.

It is a happy number.

It is not a de Polignac number, because 25994133 - 2²¹ = 23896981 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25994153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131185 + ... + 131382.

It is an arithmetic number, because the mean of its divisors is an integer number (3413384).

Almost surely, 2^25994133 is an apocalyptic number.

It is an amenable number.

25994133 is a deficient number, since it is larger than the sum of its proper divisors (14966475).

25994133 is a wasteful number, since it uses less digits than its factorization.

25994133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262584 (or 262581 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 25994133 is about 5098.4441744517. Note that the first 3 decimals coincide. The cubic root of 25994133 is about 296.2273218767.

The spelling of 25994133 in words is "twenty-five million, nine hundred ninety-four thousand, one hundred thirty-three".