55837211 has 4 divisors (see below), whose sum is σ = 56118000. Its totient is φ = 55556424.

The previous prime is 55837183. The next prime is 55837217. The reversal of 55837211 is 11273855.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11273855 = 5 ⋅2254771.

It is a cyclic number.

It is not a de Polignac number, because 55837211 - 2²² = 51642907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55837217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140096 + ... + 140493.

It is an arithmetic number, because the mean of its divisors is an integer number (14029500).

Almost surely, 2^55837211 is an apocalyptic number.

55837211 is a deficient number, since it is larger than the sum of its proper divisors (280789).

55837211 is a wasteful number, since it uses less digits than its factorization.

55837211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280788.

The product of its digits is 8400, while the sum is 32.

The square root of 55837211 is about 7472.4300598935. The cubic root of 55837211 is about 382.2151575216.

The spelling of 55837211 in words is "fifty-five million, eight hundred thirty-seven thousand, two hundred eleven".