55500783 has 12 divisors (see below), whose sum is σ = 80132040. Its totient is φ = 34154016.

The previous prime is 55500773. The next prime is 55500787. The reversal of 55500783 is 38700555.

It is not a de Polignac number, because 55500783 - 2⁶ = 55500719 is a prime.

It is a super-3 number, since 3×55500783³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55500787) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54228 + ... + 55241.

It is an arithmetic number, because the mean of its divisors is an integer number (6677670).

Almost surely, 2^55500783 is an apocalyptic number.

55500783 is a deficient number, since it is larger than the sum of its proper divisors (24631257).

55500783 is a wasteful number, since it uses less digits than its factorization.

55500783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109498 (or 109485 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 55500783 is about 7449.8847642094. The cubic root of 55500783 is about 381.4459751028.

The spelling of 55500783 in words is "fifty-five million, five hundred thousand, seven hundred eighty-three".