25733081 has 4 divisors (see below), whose sum is σ = 28072464. Its totient is φ = 23393700.

The previous prime is 25733051. The next prime is 25733089. The reversal of 25733081 is 18033752.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 25733081 - 2¹⁸ = 25470937 is a prime.

It is a super-2 number, since 2×25733081² = 1324382915505122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25733089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1169675 + ... + 1169696.

It is an arithmetic number, because the mean of its divisors is an integer number (7018116).

Almost surely, 2^25733081 is an apocalyptic number.

It is an amenable number.

25733081 is a deficient number, since it is larger than the sum of its proper divisors (2339383).

25733081 is a wasteful number, since it uses less digits than its factorization.

25733081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2339382.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 25733081 is about 5072.7784300125. The cubic root of 25733081 is about 295.2323401836.

The spelling of 25733081 in words is "twenty-five million, seven hundred thirty-three thousand, eighty-one".