5405771520 has 360 divisors, whose sum is σ = 20487330864. Its totient is φ = 1356300288.

The previous prime is 5405771509. The next prime is 5405771551. The reversal of 5405771520 is 251775045.

5405771520 is a `hidden beast` number, since 54 + 0 + 577 + 15 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a super-2 number, since 2×5405771520² = 58444731452886220800, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1761027 + ... + 1764093.

Almost surely, 2^5405771520 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 5405771520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10243665432).

5405771520 is an abundant number, since it is smaller than the sum of its proper divisors (15081559344).

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

5405771520 is a wasteful number, since it uses less digits than its factorization.

5405771520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3117 (or 3094 counting only the distinct ones).

The product of its (nonzero) digits is 49000, while the sum is 36.

The square root of 5405771520 is about 73523.9520156527. The cubic root of 5405771520 is about 1755.0354584114.

The spelling of 5405771520 in words is "five billion, four hundred five million, seven hundred seventy-one thousand, five hundred twenty".