55541213 has 16 divisors (see below), whose sum is σ = 69046656. Its totient is φ = 43502400.

The previous prime is 55541209. The next prime is 55541219. The reversal of 55541213 is 31214555.

It is a cyclic number.

It is not a de Polignac number, because 55541213 - 2² = 55541209 is a prime.

It is a super-2 number, since 2×55541213² = 6169652683022738, which contains 22 as substring.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55541219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6170 + ... + 12212.

It is an arithmetic number, because the mean of its divisors is an integer number (4315416).

Almost surely, 2^55541213 is an apocalyptic number.

It is an amenable number.

55541213 is a deficient number, since it is larger than the sum of its proper divisors (13505443).

55541213 is a wasteful number, since it uses less digits than its factorization.

55541213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6164.

The product of its digits is 3000, while the sum is 26.

The square root of 55541213 is about 7452.5977350183. The cubic root of 55541213 is about 381.5385751031.

Adding to 55541213 its reverse (31214555), we get a palindrome (86755768).

The spelling of 55541213 in words is "fifty-five million, five hundred forty-one thousand, two hundred thirteen".