25340587 has 2 divisors, whose sum is σ = 25340588. Its totient is φ = 25340586.

The previous prime is 25340573. The next prime is 25340599. The reversal of 25340587 is 78504352.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25340587 is a prime.

It is equal to p_1585852 and since 25340587 and 1585852 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (25340507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12670293 + 12670294.

It is an arithmetic number, because the mean of its divisors is an integer number (12670294).

Almost surely, 2^25340587 is an apocalyptic number.

25340587 is a deficient number, since it is larger than the sum of its proper divisors (1).

25340587 is an equidigital number, since it uses as much as digits as its factorization.

25340587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 25340587 is about 5033.9434839895. The cubic root of 25340587 is about 293.7236323398.

The spelling of 25340587 in words is "twenty-five million, three hundred forty thousand, five hundred eighty-seven".