68530572 has 72 divisors (see below), whose sum is σ = 192143952. Its totient is φ = 20419200.

The previous prime is 68530543. The next prime is 68530577. The reversal of 68530572 is 27503586.

68530572 is a `hidden beast` number, since 6 + 85 + 3 + 0 + 572 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (68530577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22738 + ... + 25574.

It is an arithmetic number, because the mean of its divisors is an integer number (2668666).

Almost surely, 2^68530572 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68530572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96071976).

68530572 is an abundant number, since it is smaller than the sum of its proper divisors (123613380).

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

68530572 is a wasteful number, since it uses less digits than its factorization.

68530572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2919 (or 2914 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 68530572 is about 8278.3193946598. The cubic root of 68530572 is about 409.2243355754.

The spelling of 68530572 in words is "sixty-eight million, five hundred thirty thousand, five hundred seventy-two".