85145252 has 24 divisors (see below), whose sum is σ = 151724160. Its totient is φ = 41801760.

The previous prime is 85145243. The next prime is 85145257. The reversal of 85145252 is 25254158.

It is not an unprimeable number, because it can be changed into a prime (85145257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66038 + ... + 67314.

It is an arithmetic number, because the mean of its divisors is an integer number (6321840).

Almost surely, 2^85145252 is an apocalyptic number.

It is an amenable number.

85145252 is a deficient number, since it is larger than the sum of its proper divisors (66578908).

85145252 is a wasteful number, since it uses less digits than its factorization.

85145252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571 (or 1569 counting only the distinct ones).

The product of its digits is 16000, while the sum is 32.

The square root of 85145252 is about 9227.4184905639. The cubic root of 85145252 is about 439.9332750058.

The spelling of 85145252 in words is "eighty-five million, one hundred forty-five thousand, two hundred fifty-two".