5021564769 has 81 divisors (see below), whose sum is σ = 8315825427. Its totient is φ = 2918421792.

The previous prime is 5021564767. The next prime is 5021564783. The reversal of 5021564769 is 9674651205.

The square root of 5021564769 is 70863.

It is a perfect power (a square), and thus also a powerful number.

5021564769 is a `hidden beast` number, since 5 + 0 + 21 + 564 + 7 + 69 = 666.

It can be written as a sum of positive squares in only one way, i.e., 742835025 + 4278729744 = 27255^2 + 65412^2 .

It is not a de Polignac number, because 5021564769 - 2¹ = 5021564767 is a prime.

It is a super-2 number, since 2×5021564769² = 50432225458524046722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5021564761) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 63564072 + ... + 63564150.

Almost surely, 2^5021564769 is an apocalyptic number.

5021564769 is the 70863-rd square number.

5021564769 is the 35432-nd centered octagonal number.

It is an amenable number.

5021564769 is a deficient number, since it is larger than the sum of its proper divisors (3294260658).

5021564769 is a wasteful number, since it uses less digits than its factorization.

5021564769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The cubic root of 5021564769 is about 1712.4307699578.

The spelling of 5021564769 in words is "five billion, twenty-one million, five hundred sixty-four thousand, seven hundred sixty-nine".