85559420 has 12 divisors (see below), whose sum is σ = 179674824. Its totient is φ = 34223760.

The previous prime is 85559417. The next prime is 85559477. The reversal of 85559420 is 2495558.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2138966 + ... + 2139005.

It is an arithmetic number, because the mean of its divisors is an integer number (14972902).

Almost surely, 2^85559420 is an apocalyptic number.

It is an amenable number.

85559420 is an abundant number, since it is smaller than the sum of its proper divisors (94115404).

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

85559420 is a wasteful number, since it uses less digits than its factorization.

85559420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4277980 (or 4277978 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 38.

The square root of 85559420 is about 9249.8335120152. The cubic root of 85559420 is about 440.6454370414.

The spelling of 85559420 in words is "eighty-five million, five hundred fifty-nine thousand, four hundred twenty".