25340687 has 6 divisors (see below), whose sum is σ = 26490912. Its totient is φ = 24238412.

The previous prime is 25340683. The next prime is 25340713. The reversal of 25340687 is 78604352.

It is a happy number.

It is not a de Polignac number, because 25340687 - 2² = 25340683 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25340683) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23423 + ... + 24480.

It is an arithmetic number, because the mean of its divisors is an integer number (4415152).

Almost surely, 2^25340687 is an apocalyptic number.

25340687 is a deficient number, since it is larger than the sum of its proper divisors (1150225).

25340687 is an equidigital number, since it uses as much as digits as its factorization.

25340687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47949 (or 47926 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 25340687 is about 5033.9534165505. The cubic root of 25340687 is about 293.7240187071.

The spelling of 25340687 in words is "twenty-five million, three hundred forty thousand, six hundred eighty-seven".