642062059 has 4 divisors (see below), whose sum is σ = 664202160. Its totient is φ = 619921960.

The previous prime is 642062039. The next prime is 642062063. The reversal of 642062059 is 950260246.

642062059 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-642062059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (642062039) 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, 11070007 + ... + 11070064.

It is an arithmetic number, because the mean of its divisors is an integer number (166050540).

Almost surely, 2^642062059 is an apocalyptic number.

642062059 is a deficient number, since it is larger than the sum of its proper divisors (22140101).

642062059 is a wasteful number, since it uses less digits than its factorization.

642062059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22140100.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 642062059 is about 25338.9435257274. The cubic root of 642062059 is about 862.6984194902.

The spelling of 642062059 in words is "six hundred forty-two million, sixty-two thousand, fifty-nine".