55641333 has 32 divisors (see below), whose sum is σ = 83280384. Its totient is φ = 32760000.

The previous prime is 55641331. The next prime is 55641349. The reversal of 55641333 is 33314655.

It is a happy number.

It is not a de Polignac number, because 55641333 - 2¹ = 55641331 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55641333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55641331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 263598 + ... + 263808.

It is an arithmetic number, because the mean of its divisors is an integer number (2602512).

Almost surely, 2^55641333 is an apocalyptic number.

It is an amenable number.

55641333 is a deficient number, since it is larger than the sum of its proper divisors (27639051).

55641333 is a wasteful number, since it uses less digits than its factorization.

55641333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417.

The product of its digits is 16200, while the sum is 30.

The square root of 55641333 is about 7459.3118315298. The cubic root of 55641333 is about 381.7676945252.

Adding to 55641333 its reverse (33314655), we get a palindrome (88955988).

The spelling of 55641333 in words is "fifty-five million, six hundred forty-one thousand, three hundred thirty-three".