55120383 has 24 divisors (see below), whose sum is σ = 81415152. Its totient is φ = 35927808.

The previous prime is 55120381. The next prime is 55120391. The reversal of 55120383 is 38302155.

It is not a de Polignac number, because 55120383 - 2¹ = 55120381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55120381) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84085 + ... + 84737.

It is an arithmetic number, because the mean of its divisors is an integer number (3392298).

Almost surely, 2^55120383 is an apocalyptic number.

55120383 is a deficient number, since it is larger than the sum of its proper divisors (26294769).

55120383 is a wasteful number, since it uses less digits than its factorization.

55120383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855 (or 852 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 55120383 is about 7424.3102709949. The cubic root of 55120383 is about 380.5725049947.

The spelling of 55120383 in words is "fifty-five million, one hundred twenty thousand, three hundred eighty-three".