5290721280 has 576 divisors, whose sum is σ = 21139211520. Its totient is φ = 1245708288.

The previous prime is 5290721269. The next prime is 5290721281. The reversal of 5290721280 is 821270925.

5290721280 is a `hidden beast` number, since 529 + 0 + 7 + 2 + 128 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5290721281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 230031349 + ... + 230031371.

It is an arithmetic number, because the mean of its divisors is an integer number (36700020).

Almost surely, 2^5290721280 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 5290721280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10569605760).

5290721280 is an abundant number, since it is smaller than the sum of its proper divisors (15848490240).

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

5290721280 is an equidigital number, since it uses as much as digits as its factorization.

5290721280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 46 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 5290721280 is about 72737.3444662369. The cubic root of 5290721280 is about 1742.4953495317.

The spelling of 5290721280 in words is "five billion, two hundred ninety million, seven hundred twenty-one thousand, two hundred eighty".