25953533 has 4 divisors (see below), whose sum is σ = 26586588. Its totient is φ = 25320480.

The previous prime is 25953511. The next prime is 25953559. The reversal of 25953533 is 33535952.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1530169 + 24423364 = 1237^2 + 4942^2 .

It is a cyclic number.

It is not a de Polignac number, because 25953533 - 2⁶ = 25953469 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25953493 and 25953502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25953583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316466 + ... + 316547.

It is an arithmetic number, because the mean of its divisors is an integer number (6646647).

Almost surely, 2^25953533 is an apocalyptic number.

It is an amenable number.

25953533 is a deficient number, since it is larger than the sum of its proper divisors (633055).

25953533 is an equidigital number, since it uses as much as digits as its factorization.

25953533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633054.

The product of its digits is 60750, while the sum is 35.

The square root of 25953533 is about 5094.4610117264. The cubic root of 25953533 is about 296.0730165925.

The spelling of 25953533 in words is "twenty-five million, nine hundred fifty-three thousand, five hundred thirty-three".