85424524 has 12 divisors (see below), whose sum is σ = 158286744. Its totient is φ = 40199744.

The previous prime is 85424509. The next prime is 85424543. The reversal of 85424524 is 42542458.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 85424524.

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, 628054 + ... + 628189.

It is an arithmetic number, because the mean of its divisors is an integer number (13190562).

Almost surely, 2^85424524 is an apocalyptic number.

It is an amenable number.

85424524 is a deficient number, since it is larger than the sum of its proper divisors (72862220).

85424524 is a wasteful number, since it uses less digits than its factorization.

85424524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256264 (or 1256262 counting only the distinct ones).

The product of its digits is 51200, while the sum is 34.

The square root of 85424524 is about 9242.5388286985. The cubic root of 85424524 is about 440.4137361823.

The spelling of 85424524 in words is "eighty-five million, four hundred twenty-four thousand, five hundred twenty-four".