2050553101251 has 4 divisors (see below), whose sum is σ = 2734070801672. Its totient is φ = 1367035400832.

The previous prime is 2050553101243. The next prime is 2050553101273. The reversal of 2050553101251 is 1521013550502.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2050553101251 - 2³ = 2050553101243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2050553101291) 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, 341758850206 + ... + 341758850211.

It is an arithmetic number, because the mean of its divisors is an integer number (683517700418).

Almost surely, 2^{2050553101251} is an apocalyptic number.

2050553101251 is a deficient number, since it is larger than the sum of its proper divisors (683517700421).

2050553101251 is an equidigital number, since it uses as much as digits as its factorization.

2050553101251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683517700420.

The product of its (nonzero) digits is 7500, while the sum is 30.

Adding to 2050553101251 its reverse (1521013550502), we get a palindrome (3571566651753).

It can be divided in two parts, 205055 and 3101251, that added together give a triangular number (3306306 = T₂₅₇₁).

The spelling of 2050553101251 in words is "two trillion, fifty billion, five hundred fifty-three million, one hundred one thousand, two hundred fifty-one".