5231620 has 12 divisors (see below), whose sum is σ = 10986444. Its totient is φ = 2092640.

The previous prime is 5231599. The next prime is 5231623. The reversal of 5231620 is 261325.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3748096 + 1483524 = 1936^2 + 1218^2 .

It is an Ulam number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (5231623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130771 + ... + 130810.

It is an arithmetic number, because the mean of its divisors is an integer number (915537).

Almost surely, 2^5231620 is an apocalyptic number.

It is an amenable number.

5231620 is an abundant number, since it is smaller than the sum of its proper divisors (5754824).

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

5231620 is a wasteful number, since it uses less digits than its factorization.

5231620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261590 (or 261588 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 5231620 is about 2287.2734860528. The cubic root of 5231620 is about 173.5982716952.

Adding to 5231620 its reverse (261325), we get a palindrome (5492945).

The spelling of 5231620 in words is "five million, two hundred thirty-one thousand, six hundred twenty".