20575030413253 has 4 divisors (see below), whose sum is σ = 20706081562540. Its totient is φ = 20443979263968.

The previous prime is 20575030413251. The next prime is 20575030413269. The reversal of 20575030413253 is 35231403057502.

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 1835542651684 + 18739487761569 = 1354822^2 + 4328913^2 .

It is a cyclic number.

It is not a de Polignac number, because 20575030413253 - 2¹ = 20575030413251 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 (20575030413251) 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, 65525574408 + ... + 65525574721.

It is an arithmetic number, because the mean of its divisors is an integer number (5176520390635).

Almost surely, 2^{20575030413253} is an apocalyptic number.

It is an amenable number.

20575030413253 is a deficient number, since it is larger than the sum of its proper divisors (131051149287).

20575030413253 is a wasteful number, since it uses less digits than its factorization.

20575030413253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131051149286.

The product of its (nonzero) digits is 378000, while the sum is 40.

The spelling of 20575030413253 in words is "twenty trillion, five hundred seventy-five billion, thirty million, four hundred thirteen thousand, two hundred fifty-three".