5311620 has 72 divisors (see below), whose sum is σ = 16825536. Its totient is φ = 1353792.

The previous prime is 5311601. The next prime is 5311651. The reversal of 5311620 is 261135.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 5311593 and 5311602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3499 + ... + 4781.

It is an arithmetic number, because the mean of its divisors is an integer number (233688).

Almost surely, 2^5311620 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 5311620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8412768).

5311620 is an abundant number, since it is smaller than the sum of its proper divisors (11513916).

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

5311620 is a wasteful number, since it uses less digits than its factorization.

5311620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321 (or 1316 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 5311620 is about 2304.6952076142. The cubic root of 5311620 is about 174.4786661494.

Adding to 5311620 its reverse (261135), we get a palindrome (5572755).

The spelling of 5311620 in words is "five million, three hundred eleven thousand, six hundred twenty".