55965219 has 8 divisors (see below), whose sum is σ = 74918592. Its totient is φ = 37161000.

The previous prime is 55965197. The next prime is 55965223. The reversal of 55965219 is 91256955.

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

It is not a de Polignac number, because 55965219 - 2¹² = 55961123 is a prime.

It is a super-2 number, since 2×55965219² = 6264211475435922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55965229) 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, 36409 + ... + 37914.

It is an arithmetic number, because the mean of its divisors is an integer number (9364824).

Almost surely, 2^55965219 is an apocalyptic number.

55965219 is a deficient number, since it is larger than the sum of its proper divisors (18953373).

55965219 is a wasteful number, since it uses less digits than its factorization.

55965219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74577.

The product of its digits is 121500, while the sum is 42.

The square root of 55965219 is about 7480.9905092842. The cubic root of 55965219 is about 382.5070134132.

The spelling of 55965219 in words is "fifty-five million, nine hundred sixty-five thousand, two hundred nineteen".