5765699521 has 4 divisors (see below), whose sum is σ = 5782220500. Its totient is φ = 5749178544.

The previous prime is 5765699519. The next prime is 5765699531. The reversal of 5765699521 is 1259965675.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2196234496 + 3569465025 = 46864^2 + 59745^2 .

It is a cyclic number.

It is not a de Polignac number, because 5765699521 - 2¹ = 5765699519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5765699531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8259966 + ... + 8260663.

It is an arithmetic number, because the mean of its divisors is an integer number (1445555125).

Almost surely, 2^5765699521 is an apocalyptic number.

It is an amenable number.

5765699521 is a deficient number, since it is larger than the sum of its proper divisors (16520979).

5765699521 is a wasteful number, since it uses less digits than its factorization.

5765699521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16520978.

The product of its digits is 5103000, while the sum is 55.

The square root of 5765699521 is about 75932.2034515001. The cubic root of 5765699521 is about 1793.1529504870.

The spelling of 5765699521 in words is "five billion, seven hundred sixty-five million, six hundred ninety-nine thousand, five hundred twenty-one".