2780505030553 has 4 divisors (see below), whose sum is σ = 2870198741248. Its totient is φ = 2690811319860.

The previous prime is 2780505030521. The next prime is 2780505030613. The reversal of 2780505030553 is 3550305050872.

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 2780505030553 - 2⁵ = 2780505030521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2780505030503) 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, 44846855301 + ... + 44846855362.

It is an arithmetic number, because the mean of its divisors is an integer number (717549685312).

Almost surely, 2^{2780505030553} is an apocalyptic number.

It is an amenable number.

2780505030553 is a deficient number, since it is larger than the sum of its proper divisors (89693710695).

2780505030553 is an equidigital number, since it uses as much as digits as its factorization.

2780505030553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89693710694.

The product of its (nonzero) digits is 630000, while the sum is 43.

The spelling of 2780505030553 in words is "two trillion, seven hundred eighty billion, five hundred five million, thirty thousand, five hundred fifty-three".