68037755 has 4 divisors (see below), whose sum is σ = 81645312. Its totient is φ = 54430200.

The previous prime is 68037733. The next prime is 68037773. The reversal of 68037755 is 55773086.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55773086 = 2 ⋅27886543.

It is a de Polignac number, because none of the positive numbers 2^k-68037755 is a prime.

It is a super-2 number, since 2×68037755² = 9258272210880050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6803771 + ... + 6803780.

It is an arithmetic number, because the mean of its divisors is an integer number (20411328).

Almost surely, 2^68037755 is an apocalyptic number.

68037755 is a deficient number, since it is larger than the sum of its proper divisors (13607557).

68037755 is a wasteful number, since it uses less digits than its factorization.

68037755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13607556.

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 68037755 is about 8248.5001666970. The cubic root of 68037755 is about 408.2410368470.

The spelling of 68037755 in words is "sixty-eight million, thirty-seven thousand, seven hundred fifty-five".