5591432 has 64 divisors (see below), whose sum is σ = 13564800. Its totient is φ = 2096640.

The previous prime is 5591431. The next prime is 5591437. The reversal of 5591432 is 2341955.

It is a super-2 number, since 2×5591432² = 62528223621248, which contains 22 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 5591395 and 5591404.

It is not an unprimeable number, because it can be changed into a prime (5591431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17708 + ... + 18020.

It is an arithmetic number, because the mean of its divisors is an integer number (211950).

Almost surely, 2^5591432 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 5591432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6782400).

5591432 is an abundant number, since it is smaller than the sum of its proper divisors (7973368).

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

5591432 is a wasteful number, since it uses less digits than its factorization.

5591432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366 (or 362 counting only the distinct ones).

The product of its digits is 5400, while the sum is 29.

The square root of 5591432 is about 2364.6208998484. The cubic root of 5591432 is about 177.4901879123.

It can be divided in two parts, 559 and 1432, that added together give a palindrome (1991).

The spelling of 5591432 in words is "five million, five hundred ninety-one thousand, four hundred thirty-two".