68051500 has 48 divisors (see below), whose sum is σ = 162148896. Its totient is φ = 24744000.

The previous prime is 68051491. The next prime is 68051507. The reversal of 68051500 is 515086.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68051507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 687 + ... + 11686.

It is an arithmetic number, because the mean of its divisors is an integer number (3378102).

Almost surely, 2^68051500 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 68051500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81074448).

68051500 is an abundant number, since it is smaller than the sum of its proper divisors (94097396).

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

68051500 is a wasteful number, since it uses less digits than its factorization.

68051500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12403 (or 12391 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 68051500 is about 8249.3333063951. Note that the first 4 decimals coincide. The cubic root of 68051500 is about 408.2685259729.

Adding to 68051500 its reverse (515086), we get a palindrome (68566586).

The spelling of 68051500 in words is "sixty-eight million, fifty-one thousand, five hundred".