25256133 has 24 divisors (see below), whose sum is σ = 41827968. Its totient is φ = 14385312.

The previous prime is 25256131. The next prime is 25256137. The reversal of 25256133 is 33165252.

25256133 is a `hidden beast` number, since 2 + 525 + 6 + 133 = 666.

It is not a de Polignac number, because 25256133 - 2¹ = 25256131 is a prime.

It is a super-2 number, since 2×25256133² = 1275744508227378, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25256097 and 25256106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25256131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31291 + ... + 32087.

It is an arithmetic number, because the mean of its divisors is an integer number (1742832).

Almost surely, 2^25256133 is an apocalyptic number.

It is an amenable number.

25256133 is a deficient number, since it is larger than the sum of its proper divisors (16571835).

25256133 is a wasteful number, since it uses less digits than its factorization.

25256133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313 (or 1310 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 25256133 is about 5025.5480298172. The cubic root of 25256133 is about 293.3969660792.

The spelling of 25256133 in words is "twenty-five million, two hundred fifty-six thousand, one hundred thirty-three".