20072953 has 4 divisors (see below), whose sum is σ = 20081920. Its totient is φ = 20063988.

The previous prime is 20072947. The next prime is 20072957. The reversal of 20072953 is 35927002.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20072953 - 2¹⁷ = 19941881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20072957) 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, 2008 + ... + 6646.

It is an arithmetic number, because the mean of its divisors is an integer number (5020480).

Almost surely, 2^20072953 is an apocalyptic number.

It is an amenable number.

20072953 is a deficient number, since it is larger than the sum of its proper divisors (8967).

20072953 is an equidigital number, since it uses as much as digits as its factorization.

20072953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8966.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 20072953 is about 4480.2849239753. The cubic root of 20072953 is about 271.7714026927.

Adding to 20072953 its reverse (35927002), we get a palindrome (55999955).

It can be divided in two parts, 20072 and 953, that added together give a square (21025 = 145²).

The spelling of 20072953 in words is "twenty million, seventy-two thousand, nine hundred fifty-three".