25200491 has 2 divisors, whose sum is σ = 25200492. Its totient is φ = 25200490.

The previous prime is 25200481. The next prime is 25200559. The reversal of 25200491 is 19400252.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25200491 is a prime.

It is not a weakly prime, because it can be changed into another prime (25200421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12600245 + 12600246.

It is an arithmetic number, because the mean of its divisors is an integer number (12600246).

Almost surely, 2^25200491 is an apocalyptic number.

25200491 is a deficient number, since it is larger than the sum of its proper divisors (1).

25200491 is an equidigital number, since it uses as much as digits as its factorization.

25200491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 25200491 is about 5020.0090637368. The cubic root of 25200491 is about 293.1813458784.

The spelling of 25200491 in words is "twenty-five million, two hundred thousand, four hundred ninety-one".