68583155 has 4 divisors (see below), whose sum is σ = 82299792. Its totient is φ = 54866520.

The previous prime is 68583131. The next prime is 68583157. The reversal of 68583155 is 55138586.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55138586 = 2 ⋅27569293.

It is not a de Polignac number, because 68583155 - 2⁶ = 68583091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68583157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6858311 + ... + 6858320.

It is an arithmetic number, because the mean of its divisors is an integer number (20574948).

Almost surely, 2^68583155 is an apocalyptic number.

68583155 is a deficient number, since it is larger than the sum of its proper divisors (13716637).

68583155 is a wasteful number, since it uses less digits than its factorization.

68583155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13716636.

The product of its digits is 144000, while the sum is 41.

The square root of 68583155 is about 8281.4947322328. The cubic root of 68583155 is about 409.3289737505.

The spelling of 68583155 in words is "sixty-eight million, five hundred eighty-three thousand, one hundred fifty-five".