55032783 has 32 divisors (see below), whose sum is σ = 81887232. Its totient is φ = 32659200.

The previous prime is 55032773. The next prime is 55032799. The reversal of 55032783 is 38723055.

55032783 = 627² + 628² + ... + 743².

It is not a de Polignac number, because 55032783 - 2¹⁰ = 55031759 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55032773) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 202938 + ... + 203208.

It is an arithmetic number, because the mean of its divisors is an integer number (2558976).

Almost surely, 2^55032783 is an apocalyptic number.

55032783 is a deficient number, since it is larger than the sum of its proper divisors (26854449).

55032783 is a wasteful number, since it uses less digits than its factorization.

55032783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 55032783 is about 7418.4083872486. The cubic root of 55032783 is about 380.3707899720.

It can be divided in two parts, 550 and 32783, that added together give a palindrome (33333).

The spelling of 55032783 in words is "fifty-five million, thirty-two thousand, seven hundred eighty-three".