20495532 has 24 divisors (see below), whose sum is σ = 48143872. Its totient is φ = 6786000.

The previous prime is 20495513. The next prime is 20495537. The reversal of 20495532 is 23559402.

It is a self number, because there is not a number n which added to its sum of digits gives 20495532.

It is not an unprimeable number, because it can be changed into a prime (20495537) 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 in 7 ways as a sum of consecutive naturals, for example, 3844 + ... + 7467.

Almost surely, 2^20495532 is an apocalyptic number.

It is an amenable number.

20495532 is an abundant number, since it is smaller than the sum of its proper divisors (27648340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20495532 is a wasteful number, since it uses less digits than its factorization.

20495532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11469 (or 11467 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 20495532 is about 4527.1991341226. The cubic root of 20495532 is about 273.6652989554.

The spelling of 20495532 in words is "twenty million, four hundred ninety-five thousand, five hundred thirty-two".