68398550 has 48 divisors (see below), whose sum is σ = 144847872. Its totient is φ = 23786400.

The previous prime is 68398543. The next prime is 68398571. The reversal of 68398550 is 5589386.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9947 + ... + 15353.

It is an arithmetic number, because the mean of its divisors is an integer number (3017664).

Almost surely, 2^68398550 is an apocalyptic number.

68398550 is an abundant number, since it is smaller than the sum of its proper divisors (76449322).

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

68398550 is a wasteful number, since it uses less digits than its factorization.

68398550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5453 (or 5448 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 68398550 is about 8270.3415890760. The cubic root of 68398550 is about 408.9613806909.

The spelling of 68398550 in words is "sixty-eight million, three hundred ninety-eight thousand, five hundred fifty".