2505471321 has 8 divisors (see below), whose sum is σ = 3350542624. Its totient is φ = 1665357120.

The previous prime is 2505471313. The next prime is 2505471329. The reversal of 2505471321 is 1231745052.

It is an interprime number because it is at equal distance from previous prime (2505471313) and next prime (2505471329).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2505471321 - 2³ = 2505471313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2505471329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1238095 + ... + 1240116.

It is an arithmetic number, because the mean of its divisors is an integer number (418817828).

Almost surely, 2^2505471321 is an apocalyptic number.

It is an amenable number.

2505471321 is a deficient number, since it is larger than the sum of its proper divisors (845071303).

2505471321 is a wasteful number, since it uses less digits than its factorization.

2505471321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2478551.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 2505471321 is about 50054.6833073590. The cubic root of 2505471321 is about 1358.1981835634.

The spelling of 2505471321 in words is "two billion, five hundred five million, four hundred seventy-one thousand, three hundred twenty-one".