85422519 has 48 divisors (see below), whose sum is σ = 157527552. Its totient is φ = 45046368.

The previous prime is 85422511. The next prime is 85422523. The reversal of 85422519 is 91522458.

It is not a de Polignac number, because 85422519 - 2³ = 85422511 is a prime.

It is a super-2 number, since 2×85422519² = 14594013504610722, which contains 22 as substring.

It is a zygodrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85422511) 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, 20182 + ... + 24044.

It is an arithmetic number, because the mean of its divisors is an integer number (3281824).

Almost surely, 2^85422519 is an apocalyptic number.

85422519 is a deficient number, since it is larger than the sum of its proper divisors (72105033).

85422519 is a wasteful number, since it uses less digits than its factorization.

85422519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3898 (or 3886 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 85422519 is about 9242.4303621937. The cubic root of 85422519 is about 440.4102905034.

The spelling of 85422519 in words is "eighty-five million, four hundred twenty-two thousand, five hundred nineteen".