5220155245 has 4 divisors (see below), whose sum is σ = 6264186300. Its totient is φ = 4176124192.

The previous prime is 5220155221. The next prime is 5220155261. The reversal of 5220155245 is 5425510225.

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 1081291689 + 4138863556 = 32883^2 + 64334^2 .

It is a cyclic number.

It is not a de Polignac number, because 5220155245 - 2⁷ = 5220155117 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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 522015520 + ... + 522015529.

It is an arithmetic number, because the mean of its divisors is an integer number (1566046575).

Almost surely, 2^5220155245 is an apocalyptic number.

It is an amenable number.

5220155245 is a deficient number, since it is larger than the sum of its proper divisors (1044031055).

5220155245 is a wasteful number, since it uses less digits than its factorization.

5220155245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044031054.

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

The square root of 5220155245 is about 72250.6418310592. The cubic root of 5220155245 is about 1734.7136917625.

The spelling of 5220155245 in words is "five billion, two hundred twenty million, one hundred fifty-five thousand, two hundred forty-five".