85704087225 has 48 divisors (see below), whose sum is σ = 146487052800. Its totient is φ = 44168217600.

The previous prime is 85704087221. The next prime is 85704087229. The reversal of 85704087225 is 52278040758.

It is an interprime number because it is at equal distance from previous prime (85704087221) and next prime (85704087229).

It is not a de Polignac number, because 85704087225 - 2² = 85704087221 is a prime.

It is a super-3 number, since 3×85704087225³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (85704087221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1546801 + ... + 1601249.

It is an arithmetic number, because the mean of its divisors is an integer number (3051813600).

Almost surely, 2^85704087225 is an apocalyptic number.

It is an amenable number.

85704087225 is a deficient number, since it is larger than the sum of its proper divisors (60782965575).

85704087225 is a wasteful number, since it uses less digits than its factorization.

85704087225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55170 (or 55165 counting only the distinct ones).

The product of its (nonzero) digits is 1254400, while the sum is 48.

The spelling of 85704087225 in words is "eighty-five billion, seven hundred four million, eighty-seven thousand, two hundred twenty-five".