5201311530 has 64 divisors (see below), whose sum is σ = 12940560000. Its totient is φ = 1336392960.

The previous prime is 5201311523. The next prime is 5201311603. The reversal of 5201311530 is 351131025.

It is a super-2 number, since 2×5201311530² = 54107283264221881800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5201311497 and 5201311506.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 428140 + ... + 440120.

It is an arithmetic number, because the mean of its divisors is an integer number (202196250).

Almost surely, 2^5201311530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5201311530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6470280000).

5201311530 is an abundant number, since it is smaller than the sum of its proper divisors (7739248470).

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

5201311530 is a wasteful number, since it uses less digits than its factorization.

5201311530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12519.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 5201311530 is about 72120.1187603016. The cubic root of 5201311530 is about 1732.6238521014.

Adding to 5201311530 its reverse (351131025), we get a palindrome (5552442555).

The spelling of 5201311530 in words is "five billion, two hundred one million, three hundred eleven thousand, five hundred thirty".