25303285487 has 4 divisors (see below), whose sum is σ = 25623580320. Its totient is φ = 24982990656.

The previous prime is 25303285439. The next prime is 25303285507. The reversal of 25303285487 is 78458230352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25303285487 - 2²² = 25299091183 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 (25303285187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160147298 + ... + 160147455.

It is an arithmetic number, because the mean of its divisors is an integer number (6405895080).

Almost surely, 2^25303285487 is an apocalyptic number.

25303285487 is a deficient number, since it is larger than the sum of its proper divisors (320294833).

25303285487 is an equidigital number, since it uses as much as digits as its factorization.

25303285487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320294832.

The product of its (nonzero) digits is 1612800, while the sum is 47.

The spelling of 25303285487 in words is "twenty-five billion, three hundred three million, two hundred eighty-five thousand, four hundred eighty-seven".