25059491 has 2 divisors, whose sum is σ = 25059492. Its totient is φ = 25059490.

The previous prime is 25059469. The next prime is 25059493. The reversal of 25059491 is 19495052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25059491 - 2¹⁴ = 25043107 is a prime.

Together with 25059493, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25059493) 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 as a sum of consecutive naturals, namely, 12529745 + 12529746.

It is an arithmetic number, because the mean of its divisors is an integer number (12529746).

Almost surely, 2^25059491 is an apocalyptic number.

25059491 is a deficient number, since it is larger than the sum of its proper divisors (1).

25059491 is an equidigital number, since it uses as much as digits as its factorization.

25059491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 25059491 is about 5005.9455650257. The cubic root of 25059491 is about 292.6335270743.

The spelling of 25059491 in words is "twenty-five million, fifty-nine thousand, four hundred ninety-one".