55430384 has 20 divisors (see below), whose sum is σ = 108121800. Its totient is φ = 27528000.

The previous prime is 55430383. The next prime is 55430399. The reversal of 55430384 is 48303455.

It is a self number, because there is not a number n which added to its sum of digits gives 55430384.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55430381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9242 + ... + 14009.

It is an arithmetic number, because the mean of its divisors is an integer number (5406090).

Almost surely, 2^55430384 is an apocalyptic number.

It is an amenable number.

55430384 is a deficient number, since it is larger than the sum of its proper divisors (52691416).

55430384 is a wasteful number, since it uses less digits than its factorization.

55430384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23408 (or 23402 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 55430384 is about 7445.1584267899. The cubic root of 55430384 is about 381.2846273664.

The spelling of 55430384 in words is "fifty-five million, four hundred thirty thousand, three hundred eighty-four".