55539206 has 16 divisors (see below), whose sum is σ = 84894480. Its totient is φ = 27246240.

The previous prime is 55539191. The next prime is 55539217. The reversal of 55539206 is 60293555.

It is a super-2 number, since 2×55539206² = 6169206806220872, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22136 + ... + 24516.

It is an arithmetic number, because the mean of its divisors is an integer number (5305905).

Almost surely, 2^55539206 is an apocalyptic number.

55539206 is a deficient number, since it is larger than the sum of its proper divisors (29355274).

55539206 is a wasteful number, since it uses less digits than its factorization.

55539206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2599.

The product of its (nonzero) digits is 40500, while the sum is 35.

The square root of 55539206 is about 7452.4630827667. The cubic root of 55539206 is about 381.5339793737.

The spelling of 55539206 in words is "fifty-five million, five hundred thirty-nine thousand, two hundred six".