20524996 has 6 divisors (see below), whose sum is σ = 35918750. Its totient is φ = 10262496.

The previous prime is 20524991. The next prime is 20525009. The reversal of 20524996 is 69942502.

It can be written as a sum of positive squares in only one way, i.e., 20520900 + 4096 = 4530^2 + 64^2 .

It is not an unprimeable number, because it can be changed into a prime (20524991) 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, 2565621 + ... + 2565628.

Almost surely, 2^20524996 is an apocalyptic number.

It is an amenable number.

20524996 is a deficient number, since it is larger than the sum of its proper divisors (15393754).

20524996 is a wasteful number, since it uses less digits than its factorization.

20524996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5131253 (or 5131251 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 20524996 is about 4530.4520745727. The cubic root of 20524996 is about 273.7963748988.

The spelling of 20524996 in words is "twenty million, five hundred twenty-four thousand, nine hundred ninety-six".