55583158 has 4 divisors (see below), whose sum is σ = 83374740. Its totient is φ = 27791578.

The previous prime is 55583153. The next prime is 55583173. The reversal of 55583158 is 85138555.

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

It is a self number, because there is not a number n which added to its sum of digits gives 55583158.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55583153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13895788 + ... + 13895791.

It is an arithmetic number, because the mean of its divisors is an integer number (20843685).

Almost surely, 2^55583158 is an apocalyptic number.

55583158 is a deficient number, since it is larger than the sum of its proper divisors (27791582).

55583158 is a wasteful number, since it uses less digits than its factorization.

55583158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27791581.

The product of its digits is 120000, while the sum is 40.

The square root of 55583158 is about 7455.4113233275. The cubic root of 55583158 is about 381.6345975441.

The spelling of 55583158 in words is "fifty-five million, five hundred eighty-three thousand, one hundred fifty-eight".