20535514 has 4 divisors (see below), whose sum is σ = 30803274. Its totient is φ = 10267756.

The previous prime is 20535503. The next prime is 20535533. The reversal of 20535514 is 41553502.

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., 12723489 + 7812025 = 3567^2 + 2795^2 .

It is an unprimeable number.

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, 5133877 + ... + 5133880.

Almost surely, 2^20535514 is an apocalyptic number.

20535514 is a deficient number, since it is larger than the sum of its proper divisors (10267760).

20535514 is a wasteful number, since it uses less digits than its factorization.

20535514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10267759.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 20535514 is about 4531.6127372052. The cubic root of 20535514 is about 273.8431357442.

The spelling of 20535514 in words is "twenty million, five hundred thirty-five thousand, five hundred fourteen".