85225007919 has 4 divisors (see below), whose sum is σ = 113633343896. Its totient is φ = 56816671944.

The previous prime is 85225007899. The next prime is 85225007929. The reversal of 85225007919 is 91970052258.

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

It is not a de Polignac number, because 85225007919 - 2²⁴ = 85208230703 is a prime.

It is a super-2 number, since 2×85225007919² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85225007929) 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, 14204167984 + ... + 14204167989.

It is an arithmetic number, because the mean of its divisors is an integer number (28408335974).

Almost surely, 2^85225007919 is an apocalyptic number.

85225007919 is a deficient number, since it is larger than the sum of its proper divisors (28408335977).

85225007919 is a wasteful number, since it uses less digits than its factorization.

85225007919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28408335976.

The product of its (nonzero) digits is 453600, while the sum is 48.

The spelling of 85225007919 in words is "eighty-five billion, two hundred twenty-five million, seven thousand, nine hundred nineteen".