2571481220 has 48 divisors (see below), whose sum is σ = 6732609408. Its totient is φ = 801500160.

The previous prime is 2571481219. The next prime is 2571481229. The reversal of 2571481220 is 221841752.

It is a super-2 number, since 2×2571481220² = 13225031329625376800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2571481229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 833357 + ... + 836436.

It is an arithmetic number, because the mean of its divisors is an integer number (140262696).

Almost surely, 2^2571481220 is an apocalyptic number.

2571481220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2571481220 is an abundant number, since it is smaller than the sum of its proper divisors (4161128188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2571481220 is a wasteful number, since it uses less digits than its factorization.

2571481220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669820 (or 1669818 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 2571481220 is about 50709.7744029689. The cubic root of 2571481220 is about 1370.0227712130.

The spelling of 2571481220 in words is "two billion, five hundred seventy-one million, four hundred eighty-one thousand, two hundred twenty".