20754002 has 4 divisors (see below), whose sum is σ = 31131006. Its totient is φ = 10377000.

The previous prime is 20754001. The next prime is 20754007. The reversal of 20754002 is 20045702.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20045702 = 2 ⋅10022851.

It can be written as a sum of positive squares in only one way, i.e., 12453841 + 8300161 = 3529^2 + 2881^2 .

It is not an unprimeable number, because it can be changed into a prime (20754001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5188499 + ... + 5188502.

Almost surely, 2^20754002 is an apocalyptic number.

20754002 is a deficient number, since it is larger than the sum of its proper divisors (10377004).

20754002 is a wasteful number, since it uses less digits than its factorization.

20754002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10377003.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 20754002 is about 4555.6560449621. The cubic root of 20754002 is about 274.8108980943.

Adding to 20754002 its reverse (20045702), we get a palindrome (40799704).

The spelling of 20754002 in words is "twenty million, seven hundred fifty-four thousand, two".