25490773 has 32 divisors (see below), whose sum is σ = 33546240. Its totient is φ = 18792000.

The previous prime is 25490737. The next prime is 25490783. The reversal of 25490773 is 37709452.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25490773 is a prime.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25490783) 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 31 ways as a sum of consecutive naturals, for example, 140743 + ... + 140923.

It is an arithmetic number, because the mean of its divisors is an integer number (1048320).

Almost surely, 2^25490773 is an apocalyptic number.

It is an amenable number.

25490773 is a deficient number, since it is larger than the sum of its proper divisors (8055467).

25490773 is a wasteful number, since it uses less digits than its factorization.

25490773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 25490773 is about 5048.8387773824. The cubic root of 25490773 is about 294.3027601341.

The spelling of 25490773 in words is "twenty-five million, four hundred ninety thousand, seven hundred seventy-three".