5651515220 has 24 divisors (see below), whose sum is σ = 12781119624. Its totient is φ = 2086713216.

The previous prime is 5651515169. The next prime is 5651515267. The reversal of 5651515220 is 225151565.

It can be written as a sum of positive squares in 4 ways, for example, as 137264656 + 5514250564 = 11716^2 + 74258^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10868039 + ... + 10868558.

It is an arithmetic number, because the mean of its divisors is an integer number (532546651).

Almost surely, 2^5651515220 is an apocalyptic number.

It is an amenable number.

5651515220 is an abundant number, since it is smaller than the sum of its proper divisors (7129604404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5651515220 is a wasteful number, since it uses less digits than its factorization.

5651515220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21736619 (or 21736617 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 32.

The square root of 5651515220 is about 75176.5603097136. The cubic root of 5651515220 is about 1781.2366968618.

Adding to 5651515220 its reverse (225151565), we get a palindrome (5876666785).

The spelling of 5651515220 in words is "five billion, six hundred fifty-one million, five hundred fifteen thousand, two hundred twenty".