25045687 has 2 divisors, whose sum is σ = 25045688. Its totient is φ = 25045686.

The previous prime is 25045681. The next prime is 25045697. The reversal of 25045687 is 78654052.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25045687 - 2³ = 25045679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25045681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12522843 + 12522844.

It is an arithmetic number, because the mean of its divisors is an integer number (12522844).

Almost surely, 2^25045687 is an apocalyptic number.

25045687 is a deficient number, since it is larger than the sum of its proper divisors (1).

25045687 is an equidigital number, since it uses as much as digits as its factorization.

25045687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 25045687 is about 5004.5666146031. The cubic root of 25045687 is about 292.5797848926.

The spelling of 25045687 in words is "twenty-five million, forty-five thousand, six hundred eighty-seven".