25940511 has 6 divisors (see below), whose sum is σ = 37469640. Its totient is φ = 17293668.

The previous prime is 25940483. The next prime is 25940513. The reversal of 25940511 is 11504952.

25940511 is a `hidden beast` number, since 259 + 405 + 1 + 1 = 666.

It is not a de Polignac number, because 25940511 - 2¹¹ = 25938463 is a prime.

It is a super-2 number, since 2×25940511² = 1345820221882242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25940513) 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, 1441131 + ... + 1441148.

It is an arithmetic number, because the mean of its divisors is an integer number (6244940).

Almost surely, 2^25940511 is an apocalyptic number.

25940511 is a deficient number, since it is larger than the sum of its proper divisors (11529129).

25940511 is a wasteful number, since it uses less digits than its factorization.

25940511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2882285 (or 2882282 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 25940511 is about 5093.1827966410. The cubic root of 25940511 is about 296.0234908007.

The spelling of 25940511 in words is "twenty-five million, nine hundred forty thousand, five hundred eleven".