55345432 has 8 divisors (see below), whose sum is σ = 103772700. Its totient is φ = 27672712.

The previous prime is 55345403. The next prime is 55345439. The reversal of 55345432 is 23454355.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 55345394 and 55345403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55345439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3459082 + ... + 3459097.

Almost surely, 2^55345432 is an apocalyptic number.

It is an amenable number.

55345432 is a deficient number, since it is larger than the sum of its proper divisors (48427268).

55345432 is a wasteful number, since it uses less digits than its factorization.

55345432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6918185 (or 6918181 counting only the distinct ones).

The product of its digits is 36000, while the sum is 31.

The square root of 55345432 is about 7439.4510550174. The cubic root of 55345432 is about 381.0897435575.

Adding to 55345432 its reverse (23454355), we get a palindrome (78799787).

The spelling of 55345432 in words is "fifty-five million, three hundred forty-five thousand, four hundred thirty-two".