55446432 has 48 divisors (see below), whose sum is σ = 149107392. Its totient is φ = 18030080.

The previous prime is 55446409. The next prime is 55446481. The reversal of 55446432 is 23464455.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 55446393 and 55446402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3108 + ... + 10979.

It is an arithmetic number, because the mean of its divisors is an integer number (3106404).

Almost surely, 2^55446432 is an apocalyptic number.

It is an amenable number.

55446432 is an abundant number, since it is smaller than the sum of its proper divisors (93660960).

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

55446432 is a wasteful number, since it uses less digits than its factorization.

55446432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14141 (or 14133 counting only the distinct ones).

The product of its digits is 57600, while the sum is 33.

The square root of 55446432 is about 7446.2360961764. The cubic root of 55446432 is about 381.3214198548.

The spelling of 55446432 in words is "fifty-five million, four hundred forty-six thousand, four hundred thirty-two".