55612329 has 8 divisors (see below), whose sum is σ = 74196960. Its totient is φ = 37051296.

The previous prime is 55612309. The next prime is 55612363. The reversal of 55612329 is 92321655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55612329 - 2²⁰ = 54563753 is a prime.

It is a super-2 number, since 2×55612329² = 6185462273608482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55612329.

It is not an unprimeable number, because it can be changed into a prime (55612309) 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, 637 + ... + 10565.

It is an arithmetic number, because the mean of its divisors is an integer number (9274620).

Almost surely, 2^55612329 is an apocalyptic number.

It is an amenable number.

55612329 is a deficient number, since it is larger than the sum of its proper divisors (18584631).

55612329 is a wasteful number, since it uses less digits than its factorization.

55612329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11799.

The product of its digits is 16200, while the sum is 33.

The square root of 55612329 is about 7457.3674309370. The cubic root of 55612329 is about 381.7013486744.

The spelling of 55612329 in words is "fifty-five million, six hundred twelve thousand, three hundred twenty-nine".