68295520 has 48 divisors (see below), whose sum is σ = 162667008. Its totient is φ = 27095040.

The previous prime is 68295517. The next prime is 68295529. The reversal of 68295520 is 2559286.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 68295520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68295529) 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, 18640 + ... + 22000.

It is an arithmetic number, because the mean of its divisors is an integer number (3388896).

Almost surely, 2^68295520 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 68295520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81333504).

68295520 is an abundant number, since it is smaller than the sum of its proper divisors (94371488).

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

68295520 is a wasteful number, since it uses less digits than its factorization.

68295520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3503 (or 3495 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 68295520 is about 8264.1103574432. The cubic root of 68295520 is about 408.7559354723.

The spelling of 68295520 in words is "sixty-eight million, two hundred ninety-five thousand, five hundred twenty".