25349500085 has 32 divisors (see below), whose sum is σ = 39409762560. Its totient is φ = 15200898048.

The previous prime is 25349500081. The next prime is 25349500109. The reversal of 25349500085 is 58000594352.

It is not a de Polignac number, because 25349500085 - 2² = 25349500081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25349500081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1457492 + ... + 1474781.

It is an arithmetic number, because the mean of its divisors is an integer number (1231555080).

Almost surely, 2^25349500085 is an apocalyptic number.

It is an amenable number.

25349500085 is a deficient number, since it is larger than the sum of its proper divisors (14060262475).

25349500085 is a wasteful number, since it uses less digits than its factorization.

25349500085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2932317.

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 25349500085 in words is "twenty-five billion, three hundred forty-nine million, five hundred thousand, eighty-five".