68375655 has 24 divisors (see below), whose sum is σ = 119216448. Its totient is φ = 36252096.

The previous prime is 68375651. The next prime is 68375689. The reversal of 68375655 is 55657386.

68375655 is a `hidden beast` number, since 6 + 83 + 7 + 565 + 5 = 666.

It is not a de Polignac number, because 68375655 - 2² = 68375651 is a prime.

It is a hoax number, since the sum of its digits (45) 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 (45).

It is a self number, because there is not a number n which added to its sum of digits gives 68375655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68375651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3394 + ... + 12176.

It is an arithmetic number, because the mean of its divisors is an integer number (4967352).

Almost surely, 2^68375655 is an apocalyptic number.

68375655 is a deficient number, since it is larger than the sum of its proper divisors (50840793).

68375655 is a wasteful number, since it uses less digits than its factorization.

68375655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8967 (or 8964 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The square root of 68375655 is about 8268.9573103264. The cubic root of 68375655 is about 408.9157451439.

The spelling of 68375655 in words is "sixty-eight million, three hundred seventy-five thousand, six hundred fifty-five".