85555242 has 24 divisors (see below), whose sum is σ = 186064320. Its totient is φ = 28411560.

The previous prime is 85555229. The next prime is 85555273. The reversal of 85555242 is 24255558.

It is a happy number.

85555242 is a `hidden beast` number, since 85 + 55 + 524 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 85555197 and 85555206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3892 + ... + 13647.

It is an arithmetic number, because the mean of its divisors is an integer number (7752680).

Almost surely, 2^85555242 is an apocalyptic number.

85555242 is an abundant number, since it is smaller than the sum of its proper divisors (100509078).

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

85555242 is a wasteful number, since it uses less digits than its factorization.

85555242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17818 (or 17815 counting only the distinct ones).

The product of its digits is 80000, while the sum is 36.

The square root of 85555242 is about 9249.6076673554. The cubic root of 85555242 is about 440.6382644566.

The spelling of 85555242 in words is "eighty-five million, five hundred fifty-five thousand, two hundred forty-two".