5220155251 has 16 divisors (see below), whose sum is σ = 5407171200. Its totient is φ = 5036830720.

The previous prime is 5220155221. The next prime is 5220155261. The reversal of 5220155251 is 1525510225.

It is a cyclic number.

It is not a de Polignac number, because 5220155251 - 2⁷ = 5220155123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5220155221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 956691 + ... + 962131.

It is an arithmetic number, because the mean of its divisors is an integer number (337948200).

Almost surely, 2^5220155251 is an apocalyptic number.

5220155251 is a deficient number, since it is larger than the sum of its proper divisors (187015949).

5220155251 is a wasteful number, since it uses less digits than its factorization.

5220155251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5774.

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 5220155251 is about 72250.6418725813. The cubic root of 5220155251 is about 1734.7136924271.

Adding to 5220155251 its reverse (1525510225), we get a palindrome (6745665476).

The spelling of 5220155251 in words is "five billion, two hundred twenty million, one hundred fifty-five thousand, two hundred fifty-one".