25490983 has 4 divisors (see below), whose sum is σ = 29132560. Its totient is φ = 21849408.

The previous prime is 25490981. The next prime is 25490987. The reversal of 25490983 is 38909452.

It is a happy number.

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

It is not a de Polignac number, because 25490983 - 2¹ = 25490981 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25490981) 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, 1820778 + ... + 1820791.

It is an arithmetic number, because the mean of its divisors is an integer number (7283140).

Almost surely, 2^25490983 is an apocalyptic number.

25490983 is a deficient number, since it is larger than the sum of its proper divisors (3641577).

25490983 is an equidigital number, since it uses as much as digits as its factorization.

25490983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3641576.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 25490983 is about 5048.8595742009. The cubic root of 25490983 is about 294.3035683143.

The spelling of 25490983 in words is "twenty-five million, four hundred ninety thousand, nine hundred eighty-three".