85552990422 has 32 divisors (see below), whose sum is σ = 177031997280. Its totient is φ = 27530280960.

The previous prime is 85552990421. The next prime is 85552990427. The reversal of 85552990422 is 22409925558.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85552990421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1304488 + ... + 1368500.

It is an arithmetic number, because the mean of its divisors is an integer number (5532249915).

Almost surely, 2^85552990422 is an apocalyptic number.

85552990422 is an abundant number, since it is smaller than the sum of its proper divisors (91479006858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85552990422 is a wasteful number, since it uses less digits than its factorization.

85552990422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71728.

The product of its (nonzero) digits is 2592000, while the sum is 51.

The spelling of 85552990422 in words is "eighty-five billion, five hundred fifty-two million, nine hundred ninety thousand, four hundred twenty-two".