20372853 has 4 divisors (see below), whose sum is σ = 27163808. Its totient is φ = 13581900.

The previous prime is 20372843. The next prime is 20372873. The reversal of 20372853 is 35827302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20372853 - 2⁴ = 20372837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20372853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20372843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3395473 + ... + 3395478.

It is an arithmetic number, because the mean of its divisors is an integer number (6790952).

Almost surely, 2^20372853 is an apocalyptic number.

It is an amenable number.

20372853 is a deficient number, since it is larger than the sum of its proper divisors (6790955).

20372853 is an equidigital number, since it uses as much as digits as its factorization.

20372853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6790954.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 20372853 is about 4513.6296923873. The cubic root of 20372853 is about 273.1181846837.

The spelling of 20372853 in words is "twenty million, three hundred seventy-two thousand, eight hundred fifty-three".