521071480 has 32 divisors (see below), whose sum is σ = 1192287600. Its totient is φ = 204894976.

The previous prime is 521071477. The next prime is 521071511. The reversal of 521071480 is 84170125.

It is a congruent number.

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, 108037 + ... + 112756.

Almost surely, 2^521071480 is an apocalyptic number.

It is an amenable number.

521071480 is an abundant number, since it is smaller than the sum of its proper divisors (671216120).

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

521071480 is a wasteful number, since it uses less digits than its factorization.

521071480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220863 (or 220859 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 521071480 is about 22826.9901651532. The cubic root of 521071480 is about 804.6970967945.

The spelling of 521071480 in words is "five hundred twenty-one million, seventy-one thousand, four hundred eighty".