68788550 has 72 divisors (see below), whose sum is σ = 140031216. Its totient is φ = 25116480.

The previous prime is 68788543. The next prime is 68788567. The reversal of 68788550 is 5588786.

It is a super-2 number, since 2×68788550² = 9463729222205000, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68788495 and 68788504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 667799 + ... + 667901.

It is an arithmetic number, because the mean of its divisors is an integer number (1944878).

Almost surely, 2^68788550 is an apocalyptic number.

68788550 is an abundant number, since it is smaller than the sum of its proper divisors (71242666).

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

68788550 is a wasteful number, since it uses less digits than its factorization.

68788550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 47.

The square root of 68788550 is about 8293.8863025725. The cubic root of 68788550 is about 409.7371902902.

The spelling of 68788550 in words is "sixty-eight million, seven hundred eighty-eight thousand, five hundred fifty".