55658328 has 32 divisors (see below), whose sum is σ = 151796160. Its totient is φ = 16866080.

The previous prime is 55658327. The next prime is 55658329. The reversal of 55658328 is 82385655.

It is an interprime number because it is at equal distance from previous prime (55658327) and next prime (55658329).

It is a self number, because there is not a number n which added to its sum of digits gives 55658328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55658327) 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, 105150 + ... + 105677.

It is an arithmetic number, because the mean of its divisors is an integer number (4743630).

Almost surely, 2^55658328 is an apocalyptic number.

It is an amenable number.

55658328 is an abundant number, since it is smaller than the sum of its proper divisors (96137832).

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

55658328 is a wasteful number, since it uses less digits than its factorization.

55658328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210847 (or 210843 counting only the distinct ones).

The product of its digits is 288000, while the sum is 42.

The square root of 55658328 is about 7460.4509247096. The cubic root of 55658328 is about 381.8065594071.

The spelling of 55658328 in words is "fifty-five million, six hundred fifty-eight thousand, three hundred twenty-eight".