55989345 has 16 divisors (see below), whose sum is σ = 89675712. Its totient is φ = 29830080.

The previous prime is 55989341. The next prime is 55989377. The reversal of 55989345 is 54398955.

It is a happy number.

It is not a de Polignac number, because 55989345 - 2² = 55989341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55989294 and 55989303.

It is not an unprimeable number, because it can be changed into a prime (55989341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27999 + ... + 29931.

It is an arithmetic number, because the mean of its divisors is an integer number (5604732).

Almost surely, 2^55989345 is an apocalyptic number.

It is an amenable number.

55989345 is a deficient number, since it is larger than the sum of its proper divisors (33686367).

55989345 is a wasteful number, since it uses less digits than its factorization.

55989345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3872.

The product of its digits is 972000, while the sum is 48.

The square root of 55989345 is about 7482.6028225478. The cubic root of 55989345 is about 382.5619703943.

The spelling of 55989345 in words is "fifty-five million, nine hundred eighty-nine thousand, three hundred forty-five".