85223450 has 24 divisors (see below), whose sum is σ = 170710428. Its totient is φ = 31466880.

The previous prime is 85223449. The next prime is 85223459. The reversal of 85223450 is 5432258.

It can be written as a sum of positive squares in 6 ways, for example, as 6599761 + 78623689 = 2569^2 + 8867^2 .

It is not an unprimeable number, because it can be changed into a prime (85223459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64907 + ... + 66206.

Almost surely, 2^85223450 is an apocalyptic number.

85223450 is an abundant number, since it is smaller than the sum of its proper divisors (85486978).

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

85223450 is a wasteful number, since it uses less digits than its factorization.

85223450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131138 (or 131133 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 85223450 is about 9231.6547812405. The cubic root of 85223450 is about 440.0679130709.

The spelling of 85223450 in words is "eighty-five million, two hundred twenty-three thousand, four hundred fifty".