521270980 has 24 divisors (see below), whose sum is σ = 1096242840. Its totient is φ = 208208640.

The previous prime is 521270951. The next prime is 521271013. The reversal of 521270980 is 89072125.

It can be written as a sum of positive squares in 4 ways, for example, as 30294016 + 490976964 = 5504^2 + 22158^2 .

It is a super-3 number, since 3×521270980³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4201 + ... + 32560.

It is an arithmetic number, because the mean of its divisors is an integer number (45676785).

Almost surely, 2^521270980 is an apocalyptic number.

It is an amenable number.

521270980 is an abundant number, since it is smaller than the sum of its proper divisors (574971860).

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

521270980 is a wasteful number, since it uses less digits than its factorization.

521270980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37479 (or 37477 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 521270980 is about 22831.3595740595. The cubic root of 521270980 is about 804.7997804590.

The spelling of 521270980 in words is "five hundred twenty-one million, two hundred seventy thousand, nine hundred eighty".