2251234020253 has 4 divisors (see below), whose sum is σ = 2349113760288. Its totient is φ = 2153354280220.

The previous prime is 2251234020209. The next prime is 2251234020283. The reversal of 2251234020253 is 3520204321522.

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.

It is a de Polignac number, because none of the positive numbers 2^k-2251234020253 is a prime.

It is a super-2 number, since 2×2251234020253² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251234020283) 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, 48939869983 + ... + 48939870028.

It is an arithmetic number, because the mean of its divisors is an integer number (587278440072).

Almost surely, 2^{2251234020253} is an apocalyptic number.

2251234020253 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2251234020253 is a deficient number, since it is larger than the sum of its proper divisors (97879740035).

2251234020253 is an equidigital number, since it uses as much as digits as its factorization.

2251234020253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97879740034.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 2251234020253 its reverse (3520204321522), we get a palindrome (5771438341775).

The spelling of 2251234020253 in words is "two trillion, two hundred fifty-one billion, two hundred thirty-four million, twenty thousand, two hundred fifty-three".