2155244753453 has 4 divisors (see below), whose sum is σ = 2351176094688. Its totient is φ = 1959313412220.

The previous prime is 2155244753413. The next prime is 2155244753527. The reversal of 2155244753453 is 3543574425512.

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 cyclic number.

It is not a de Polignac number, because 2155244753453 - 2²⁰ = 2155243704877 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 (2155244753413) 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, 97965670601 + ... + 97965670622.

It is an arithmetic number, because the mean of its divisors is an integer number (587794023672).

Almost surely, 2^{2155244753453} is an apocalyptic number.

It is an amenable number.

2155244753453 is a deficient number, since it is larger than the sum of its proper divisors (195931341235).

2155244753453 is a wasteful number, since it uses less digits than its factorization.

2155244753453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195931341234.

The product of its digits is 10080000, while the sum is 50.

The spelling of 2155244753453 in words is "two trillion, one hundred fifty-five billion, two hundred forty-four million, seven hundred fifty-three thousand, four hundred fifty-three".