20536492 has 12 divisors (see below), whose sum is σ = 37830520. Its totient is φ = 9727776.

The previous prime is 20536471. The next prime is 20536513. The reversal of 20536492 is 29463502.

It is an interprime number because it is at equal distance from previous prime (20536471) and next prime (20536513).

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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 in 3 ways as a sum of consecutive naturals, for example, 135033 + ... + 135184.

Almost surely, 2^20536492 is an apocalyptic number.

It is an amenable number.

20536492 is a deficient number, since it is larger than the sum of its proper divisors (17294028).

20536492 is a wasteful number, since it uses less digits than its factorization.

20536492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270240 (or 270238 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 20536492 is about 4531.7206445234. The cubic root of 20536492 is about 273.8474829179.

Adding to 20536492 its reverse (29463502), we get a palindrome (49999994).

The spelling of 20536492 in words is "twenty million, five hundred thirty-six thousand, four hundred ninety-two".