5121545320 has 32 divisors (see below), whose sum is σ = 11525536800. Its totient is φ = 2048251968.

The previous prime is 5121545287. The next prime is 5121545329. The reversal of 5121545320 is 235451215.

It is not an unprimeable number, because it can be changed into a prime (5121545329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382987 + ... + 396133.

It is an arithmetic number, because the mean of its divisors is an integer number (360173025).

Almost surely, 2^5121545320 is an apocalyptic number.

It is an amenable number.

5121545320 is an abundant number, since it is smaller than the sum of its proper divisors (6403991480).

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

5121545320 is a wasteful number, since it uses less digits than its factorization.

5121545320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22897 (or 22893 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 5121545320 is about 71564.9727171051. The cubic root of 5121545320 is about 1723.7211351569.

Adding to 5121545320 its reverse (235451215), we get a palindrome (5356996535).

The spelling of 5121545320 in words is "five billion, one hundred twenty-one million, five hundred forty-five thousand, three hundred twenty".