20244154253 has 4 divisors (see below), whose sum is σ = 20246665020. Its totient is φ = 20241643488.

The previous prime is 20244154201. The next prime is 20244154277. The reversal of 20244154253 is 35245144202.

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 6096954889 + 14147199364 = 78083^2 + 118942^2 .

It is a cyclic number.

It is not a de Polignac number, because 20244154253 - 2²⁰ = 20243105677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20214154253) 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, 1243250 + ... + 1259427.

It is an arithmetic number, because the mean of its divisors is an integer number (5061666255).

Almost surely, 2^20244154253 is an apocalyptic number.

It is an amenable number.

20244154253 is a deficient number, since it is larger than the sum of its proper divisors (2510767).

20244154253 is an equidigital number, since it uses as much as digits as its factorization.

20244154253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510766.

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 20244154253 its reverse (35245144202), we get a palindrome (55489298455).

The spelling of 20244154253 in words is "twenty billion, two hundred forty-four million, one hundred fifty-four thousand, two hundred fifty-three".