5281057520 has 20 divisors (see below), whose sum is σ = 12278458920. Its totient is φ = 2112422976.

The previous prime is 5281057477. The next prime is 5281057547. The reversal of 5281057520 is 257501825.

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33006530 + ... + 33006689.

It is an arithmetic number, because the mean of its divisors is an integer number (613922946).

Almost surely, 2^5281057520 is an apocalyptic number.

It is an amenable number.

5281057520 is an abundant number, since it is smaller than the sum of its proper divisors (6997401400).

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

5281057520 is a wasteful number, since it uses less digits than its factorization.

5281057520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66013232 (or 66013226 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 5281057520 is about 72670.8849540172. The cubic root of 5281057520 is about 1741.4337854061.

The spelling of 5281057520 in words is "five billion, two hundred eighty-one million, fifty-seven thousand, five hundred twenty".