55386432 has 42 divisors (see below), whose sum is σ = 158756858. Its totient is φ = 18461952.

The previous prime is 55386403. The next prime is 55386437. The reversal of 55386432 is 23468355.

It is a happy number.

55386432 is a `hidden beast` number, since 5 + 5 + 3 + 8 + 643 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 54997056 + 389376 = 7416^2 + 624^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55386437) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 47503 + ... + 48654.

Almost surely, 2^55386432 is an apocalyptic number.

It is an amenable number.

55386432 is an abundant number, since it is smaller than the sum of its proper divisors (103370426).

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

55386432 is a wasteful number, since it uses less digits than its factorization.

55386432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96175 (or 96162 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 55386432 is about 7442.2061245305. The cubic root of 55386432 is about 381.1838243289.

The spelling of 55386432 in words is "fifty-five million, three hundred eighty-six thousand, four hundred thirty-two".