68752155 has 16 divisors (see below), whose sum is σ = 110115360. Its totient is φ = 36630528.

The previous prime is 68752147. The next prime is 68752193. The reversal of 68752155 is 55125786.

It is not a de Polignac number, because 68752155 - 2³ = 68752147 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19509 + ... + 22761.

It is an arithmetic number, because the mean of its divisors is an integer number (6882210).

Almost surely, 2^68752155 is an apocalyptic number.

68752155 is a deficient number, since it is larger than the sum of its proper divisors (41363205).

68752155 is a wasteful number, since it uses less digits than its factorization.

68752155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4670.

The product of its digits is 84000, while the sum is 39.

The square root of 68752155 is about 8291.6919262597. The cubic root of 68752155 is about 409.6649155885.

The spelling of 68752155 in words is "sixty-eight million, seven hundred fifty-two thousand, one hundred fifty-five".