20567002 has 4 divisors (see below), whose sum is σ = 30850506. Its totient is φ = 10283500.

The previous prime is 20566999. The next prime is 20567009. The reversal of 20567002 is 20076502.

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

It can be written as a sum of positive squares in only one way, i.e., 13905441 + 6661561 = 3729^2 + 2581^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (20567009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5141749 + ... + 5141752.

Almost surely, 2^20567002 is an apocalyptic number.

20567002 is a deficient number, since it is larger than the sum of its proper divisors (10283504).

20567002 is a wasteful number, since it uses less digits than its factorization.

20567002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10283503.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 20567002 is about 4535.0856662251. The cubic root of 20567002 is about 273.9830294780.

The spelling of 20567002 in words is "twenty million, five hundred sixty-seven thousand, two".