2530779321 has 32 divisors (see below), whose sum is σ = 3902542848. Its totient is φ = 1428926400.

The previous prime is 2530779313. The next prime is 2530779359. The reversal of 2530779321 is 1239770352.

It is not a de Polignac number, because 2530779321 - 2³ = 2530779313 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2530779321.

It is not an unprimeable number, because it can be changed into a prime (2530779371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1447770 + ... + 1449516.

It is an arithmetic number, because the mean of its divisors is an integer number (121954464).

Almost surely, 2^2530779321 is an apocalyptic number.

2530779321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2530779321 is a deficient number, since it is larger than the sum of its proper divisors (1371763527).

2530779321 is a wasteful number, since it uses less digits than its factorization.

2530779321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2541.

The product of its (nonzero) digits is 79380, while the sum is 39.

The square root of 2530779321 is about 50306.8516307670. The cubic root of 2530779321 is about 1362.7559672393.

The spelling of 2530779321 in words is "two billion, five hundred thirty million, seven hundred seventy-nine thousand, three hundred twenty-one".