55791849 has 4 divisors (see below), whose sum is σ = 74389136. Its totient is φ = 37194564.

The previous prime is 55791821. The next prime is 55791851. The reversal of 55791849 is 94819755.

55791849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 55791849 - 2⁵ = 55791817 is a prime.

It is a super-2 number, since 2×55791849² = 6225460829677602, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55791798 and 55791807.

It is not an unprimeable number, because it can be changed into a prime (55791899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9298639 + ... + 9298644.

It is an arithmetic number, because the mean of its divisors is an integer number (18597284).

Almost surely, 2^55791849 is an apocalyptic number.

It is an amenable number.

55791849 is a deficient number, since it is larger than the sum of its proper divisors (18597287).

55791849 is a wasteful number, since it uses less digits than its factorization.

55791849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18597286.

The product of its digits is 453600, while the sum is 48.

The square root of 55791849 is about 7469.3941521384. The cubic root of 55791849 is about 382.1116259584. Note that the first 3 decimals are identical.

The spelling of 55791849 in words is "fifty-five million, seven hundred ninety-one thousand, eight hundred forty-nine".