25591763 has 2 divisors, whose sum is σ = 25591764. Its totient is φ = 25591762.

The previous prime is 25591759. The next prime is 25591799. The reversal of 25591763 is 36719552.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25591763 - 2² = 25591759 is a prime.

It is not a weakly prime, because it can be changed into another prime (25591963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12795881 + 12795882.

It is an arithmetic number, because the mean of its divisors is an integer number (12795882).

Almost surely, 2^25591763 is an apocalyptic number.

25591763 is a deficient number, since it is larger than the sum of its proper divisors (1).

25591763 is an equidigital number, since it uses as much as digits as its factorization.

25591763 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56700, while the sum is 38.

The square root of 25591763 is about 5058.8302007480. The cubic root of 25591763 is about 294.6909067426.

The spelling of 25591763 in words is "twenty-five million, five hundred ninety-one thousand, seven hundred sixty-three".