5290545780 has 240 divisors, whose sum is σ = 17967715920. Its totient is φ = 1295419392.

The previous prime is 5290545761. The next prime is 5290545787. The reversal of 5290545780 is 875450925.

5290545780 is a `hidden beast` number, since 5 + 29 + 0 + 54 + 578 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 72795024 + 5217750756 = 8532^2 + 72234^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5290545787) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4822192 + ... + 4823288.

It is an arithmetic number, because the mean of its divisors is an integer number (74865483).

Almost surely, 2^5290545780 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 5290545780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8983857960).

5290545780 is an abundant number, since it is smaller than the sum of its proper divisors (12677170140).

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

5290545780 is a wasteful number, since it uses less digits than its factorization.

5290545780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360 (or 1349 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 45.

The square root of 5290545780 is about 72736.1380608017. The cubic root of 5290545780 is about 1742.4760823846.

The spelling of 5290545780 in words is "five billion, two hundred ninety million, five hundred forty-five thousand, seven hundred eighty".