5477771520 has 432 divisors, whose sum is σ = 20713405440. Its totient is φ = 1328431104.

The previous prime is 5477771491. The next prime is 5477771521. The reversal of 5477771520 is 251777745.

5477771520 is a `hidden beast` number, since 54 + 7 + 7 + 7 + 71 + 520 = 666.

It is a super-2 number, since 2×5477771520² = 60011961650646220800, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (5477771521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11830809 + ... + 11831271.

Almost surely, 2^5477771520 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 5477771520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10356702720).

5477771520 is an abundant number, since it is smaller than the sum of its proper divisors (15235633920).

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

5477771520 is a wasteful number, since it uses less digits than its factorization.

5477771520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582 (or 565 counting only the distinct ones).

The product of its (nonzero) digits is 480200, while the sum is 45.

The square root of 5477771520 is about 74011.9687618158. The cubic root of 5477771520 is about 1762.7929484387.

The spelling of 5477771520 in words is "five billion, four hundred seventy-seven million, seven hundred seventy-one thousand, five hundred twenty".