2571520212 has 72 divisors (see below), whose sum is σ = 6651695232. Its totient is φ = 837273600.

The previous prime is 2571520177. The next prime is 2571520319. The reversal of 2571520212 is 2120251752.

It is a super-2 number, since 2×2571520212² = 13225432401449049888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1083387 + ... + 1085757.

It is an arithmetic number, because the mean of its divisors is an integer number (92384656).

Almost surely, 2^2571520212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2571520212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3325847616).

2571520212 is an abundant number, since it is smaller than the sum of its proper divisors (4080175020).

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

2571520212 is a wasteful number, since it uses less digits than its factorization.

2571520212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3069 (or 3064 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 2571520212 is about 50710.1588638805. The cubic root of 2571520212 is about 1370.0296958417.

Adding to 2571520212 its reverse (2120251752), we get a palindrome (4691771964).

The spelling of 2571520212 in words is "two billion, five hundred seventy-one million, five hundred twenty thousand, two hundred twelve".