85249530 has 32 divisors (see below), whose sum is σ = 227332800. Its totient is φ = 22733136.

The previous prime is 85249519. The next prime is 85249559. The reversal of 85249530 is 3594258.

85249530 is a `hidden beast` number, since 85 + 2 + 49 + 530 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157600 + ... + 158139.

It is an arithmetic number, because the mean of its divisors is an integer number (7104150).

Almost surely, 2^85249530 is an apocalyptic number.

85249530 is an abundant number, since it is smaller than the sum of its proper divisors (142083270).

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

85249530 is a wasteful number, since it uses less digits than its factorization.

85249530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315755 (or 315749 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 85249530 is about 9233.0672043476. The cubic root of 85249530 is about 440.1127982156.

The spelling of 85249530 in words is "eighty-five million, two hundred forty-nine thousand, five hundred thirty".