55823511 has 4 divisors (see below), whose sum is σ = 74431352. Its totient is φ = 37215672.

The previous prime is 55823489. The next prime is 55823531. The reversal of 55823511 is 11532855.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 55823511 - 2¹⁴ = 55807127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55823531) 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, 9303916 + ... + 9303921.

It is an arithmetic number, because the mean of its divisors is an integer number (18607838).

Almost surely, 2^55823511 is an apocalyptic number.

55823511 is a deficient number, since it is larger than the sum of its proper divisors (18607841).

55823511 is a wasteful number, since it uses less digits than its factorization.

55823511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18607840.

The product of its digits is 6000, while the sum is 30.

The square root of 55823511 is about 7471.5133005302. The cubic root of 55823511 is about 382.1838953586.

The spelling of 55823511 in words is "fifty-five million, eight hundred twenty-three thousand, five hundred eleven".