68563043 has 4 divisors (see below), whose sum is σ = 69586440. Its totient is φ = 67539648.

The previous prime is 68563037. The next prime is 68563051. The reversal of 68563043 is 34036586.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34036586 = 2 ⋅17018293.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68563043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68562994 and 68563012.

It is not an unprimeable number, because it can be changed into a prime (68563003) 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, 511598 + ... + 511731.

It is an arithmetic number, because the mean of its divisors is an integer number (17396610).

Almost surely, 2^68563043 is an apocalyptic number.

68563043 is a deficient number, since it is larger than the sum of its proper divisors (1023397).

68563043 is a wasteful number, since it uses less digits than its factorization.

68563043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023396.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 68563043 is about 8280.2803696493. The cubic root of 68563043 is about 409.2889579518.

The spelling of 68563043 in words is "sixty-eight million, five hundred sixty-three thousand, forty-three".