55211135 has 16 divisors (see below), whose sum is σ = 77331456. Its totient is φ = 37052448.

The previous prime is 55211111. The next prime is 55211153. The reversal of 55211135 is 53111255.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 55211135 - 2¹⁸ = 54948991 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55211135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15137 + ... + 18426.

It is an arithmetic number, because the mean of its divisors is an integer number (4833216).

Almost surely, 2^55211135 is an apocalyptic number.

55211135 is a deficient number, since it is larger than the sum of its proper divisors (22120321).

55211135 is a wasteful number, since it uses less digits than its factorization.

55211135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33622.

The product of its digits is 750, while the sum is 23.

The square root of 55211135 is about 7430.4195709260. The cubic root of 55211135 is about 380.7812528102.

The spelling of 55211135 in words is "fifty-five million, two hundred eleven thousand, one hundred thirty-five".