5311020 has 96 divisors (see below), whose sum is σ = 17498880. Its totient is φ = 1186560.

The previous prime is 5310983. The next prime is 5311027. The reversal of 5311020 is 201135.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 5310987 and 5311005.

It is not an unprimeable number, because it can be changed into a prime (5311027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8271 + ... + 8889.

It is an arithmetic number, because the mean of its divisors is an integer number (182280).

Almost surely, 2^5311020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5311020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8749440).

5311020 is an abundant number, since it is smaller than the sum of its proper divisors (12187860).

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

5311020 is a wasteful number, since it uses less digits than its factorization.

5311020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655 (or 653 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 5311020 is about 2304.5650348819. The cubic root of 5311020 is about 174.4720962052.

Adding to 5311020 its reverse (201135), we get a palindrome (5512155).

It can be divided in two parts, 531 and 1020, that added together give a palindrome (1551).

The spelling of 5311020 in words is "five million, three hundred eleven thousand, twenty".