25061887318 has 32 divisors (see below), whose sum is σ = 41832161280. Its totient is φ = 11182747680.

The previous prime is 25061887313. The next prime is 25061887321. The reversal of 25061887318 is 81378816052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25061887313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 822471 + ... + 852397.

It is an arithmetic number, because the mean of its divisors is an integer number (1307255040).

Almost surely, 2^25061887318 is an apocalyptic number.

25061887318 is a deficient number, since it is larger than the sum of its proper divisors (16770273962).

25061887318 is a wasteful number, since it uses less digits than its factorization.

25061887318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31012.

The product of its (nonzero) digits is 645120, while the sum is 49.

The spelling of 25061887318 in words is "twenty-five billion, sixty-one million, eight hundred eighty-seven thousand, three hundred eighteen".