5202215545 has 4 divisors (see below), whose sum is σ = 6242658660. Its totient is φ = 4161772432.

The previous prime is 5202215537. The next prime is 5202215549. The reversal of 5202215545 is 5455122025.

It is a happy number.

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 3567792361 + 1634423184 = 59731^2 + 40428^2 .

It is a cyclic number.

It is not a de Polignac number, because 5202215545 - 2³ = 5202215537 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (5202215549) 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, 520221550 + ... + 520221559.

It is an arithmetic number, because the mean of its divisors is an integer number (1560664665).

Almost surely, 2^5202215545 is an apocalyptic number.

It is an amenable number.

5202215545 is a deficient number, since it is larger than the sum of its proper divisors (1040443115).

5202215545 is a wasteful number, since it uses less digits than its factorization.

5202215545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040443114.

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 5202215545 is about 72126.3859138942. The cubic root of 5202215545 is about 1732.7242259658.

The spelling of 5202215545 in words is "five billion, two hundred two million, two hundred fifteen thousand, five hundred forty-five".