2745720353 has 4 divisors (see below), whose sum is σ = 2747192880. Its totient is φ = 2744247828.

The previous prime is 2745720317. The next prime is 2745720359. The reversal of 2745720353 is 3530275472.

It is a happy number.

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 2745720353 - 2¹⁰ = 2745719329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2745720359) 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, 733463 + ... + 737196.

It is an arithmetic number, because the mean of its divisors is an integer number (686798220).

Almost surely, 2^2745720353 is an apocalyptic number.

It is an amenable number.

2745720353 is a deficient number, since it is larger than the sum of its proper divisors (1472527).

2745720353 is a wasteful number, since it uses less digits than its factorization.

2745720353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1472526.

The product of its (nonzero) digits is 176400, while the sum is 38.

The square root of 2745720353 is about 52399.6216875656. The cubic root of 2745720353 is about 1400.2925159183.

The spelling of 2745720353 in words is "two billion, seven hundred forty-five million, seven hundred twenty thousand, three hundred fifty-three".