5515432 has 32 divisors (see below), whose sum is σ = 11236680. Its totient is φ = 2522880.

The previous prime is 5515421. The next prime is 5515439. The reversal of 5515432 is 2345155.

It can be written as a sum of positive squares in 4 ways, for example, as 3481956 + 2033476 = 1866^2 + 1426^2 .

It is a super-3 number, since 3×5515432³ (a number of 21 digits) contains 333 as substring.

It is a plaindrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 5515397 and 5515406.

It is not an unprimeable number, because it can be changed into a prime (5515439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18678 + ... + 18970.

Almost surely, 2^5515432 is an apocalyptic number.

5515432 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5515432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5618340).

5515432 is an abundant number, since it is smaller than the sum of its proper divisors (5721248).

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

5515432 is a wasteful number, since it uses less digits than its factorization.

5515432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493 (or 489 counting only the distinct ones).

The product of its digits is 3000, while the sum is 25.

The square root of 5515432 is about 2348.4956887335. The cubic root of 5515432 is about 176.6823545264.

The spelling of 5515432 in words is "five million, five hundred fifteen thousand, four hundred thirty-two".