19700055253 has 4 divisors (see below), whose sum is σ = 19723043340. Its totient is φ = 19677067168.

The previous prime is 19700055251. The next prime is 19700055293. The reversal of 19700055253 is 35255000791.

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 15446015524 + 4254039729 = 124282^2 + 65223^2 .

It is a cyclic number.

It is not a de Polignac number, because 19700055253 - 2¹ = 19700055251 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 (19700055251) 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, 11492758 + ... + 11494471.

It is an arithmetic number, because the mean of its divisors is an integer number (4930760835).

Almost surely, 2^19700055253 is an apocalyptic number.

It is an amenable number.

19700055253 is a deficient number, since it is larger than the sum of its proper divisors (22988087).

19700055253 is an equidigital number, since it uses as much as digits as its factorization.

19700055253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22988086.

The product of its (nonzero) digits is 47250, while the sum is 37.

The spelling of 19700055253 in words is "nineteen billion, seven hundred million, fifty-five thousand, two hundred fifty-three".