2555280619 has 4 divisors (see below), whose sum is σ = 2598590520. Its totient is φ = 2511970720.

The previous prime is 2555280601. The next prime is 2555280641. The reversal of 2555280619 is 9160825552.

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

It is a cyclic number.

It is not a de Polignac number, because 2555280619 - 2⁷ = 2555280491 is a prime.

It is a super-2 number, since 2×2555280619² = 13058918083674046322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2555280649) 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, 21654862 + ... + 21654979.

It is an arithmetic number, because the mean of its divisors is an integer number (649647630).

Almost surely, 2^2555280619 is an apocalyptic number.

2555280619 is a deficient number, since it is larger than the sum of its proper divisors (43309901).

2555280619 is an equidigital number, since it uses as much as digits as its factorization.

2555280619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43309900.

The product of its (nonzero) digits is 216000, while the sum is 43.

The square root of 2555280619 is about 50549.7835702587. The cubic root of 2555280619 is about 1367.1396123275.

The spelling of 2555280619 in words is "two billion, five hundred fifty-five million, two hundred eighty thousand, six hundred nineteen".