20292953 has 4 divisors (see below), whose sum is σ = 20992740. Its totient is φ = 19593168.

The previous prime is 20292913. The next prime is 20292959. The reversal of 20292953 is 35929202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3211264 + 17081689 = 1792^2 + 4133^2 .

It is a cyclic number.

It is not a de Polignac number, because 20292953 - 2⁶ = 20292889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20292959) 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 3 ways as a sum of consecutive naturals, for example, 349850 + ... + 349907.

It is an arithmetic number, because the mean of its divisors is an integer number (5248185).

Almost surely, 2^20292953 is an apocalyptic number.

It is an amenable number.

20292953 is a deficient number, since it is larger than the sum of its proper divisors (699787).

20292953 is an equidigital number, since it uses as much as digits as its factorization.

20292953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699786.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 20292953 is about 4504.7700274265. The cubic root of 20292953 is about 272.7606708022.

The spelling of 20292953 in words is "twenty million, two hundred ninety-two thousand, nine hundred fifty-three".