55345641 has 24 divisors (see below), whose sum is σ = 80496576. Its totient is φ = 33808320.

The previous prime is 55345597. The next prime is 55345657. The reversal of 55345641 is 14654355.

It is not a de Polignac number, because 55345641 - 2¹⁹ = 54821353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55345441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87396 + ... + 88026.

It is an arithmetic number, because the mean of its divisors is an integer number (3354024).

Almost surely, 2^55345641 is an apocalyptic number.

It is an amenable number.

55345641 is a deficient number, since it is larger than the sum of its proper divisors (25150935).

55345641 is a wasteful number, since it uses less digits than its factorization.

55345641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833 (or 820 counting only the distinct ones).

The product of its digits is 36000, while the sum is 33.

The square root of 55345641 is about 7439.4651017395. The cubic root of 55345641 is about 381.0902232578.

Adding to 55345641 its reverse (14654355), we get a palindrome (69999996).

It can be divided in two parts, 5534 and 5641, that added together give a triangular number (11175 = T₁₄₉).

The spelling of 55345641 in words is "fifty-five million, three hundred forty-five thousand, six hundred forty-one".