20254356053 has 6 divisors (see below), whose sum is σ = 21515873346. Its totient is φ = 19062923072.

The previous prime is 20254356047. The next prime is 20254356061. The reversal of 20254356053 is 35065345202.

It can be written as a sum of positive squares in 3 ways, for example, as 2813984209 + 17440371844 = 53047^2 + 132062^2 .

It is not a de Polignac number, because 20254356053 - 2⁴ = 20254356037 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 (20254356653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35041850 + ... + 35042427.

It is an arithmetic number, because the mean of its divisors is an integer number (3585978891).

Almost surely, 2^20254356053 is an apocalyptic number.

It is an amenable number.

20254356053 is a deficient number, since it is larger than the sum of its proper divisors (1261517293).

20254356053 is an equidigital number, since it uses as much as digits as its factorization.

20254356053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70084311 (or 70084294 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 35.

The spelling of 20254356053 in words is "twenty billion, two hundred fifty-four million, three hundred fifty-six thousand, fifty-three".