54781755 has 48 divisors (see below), whose sum is σ = 103459104. Its totient is φ = 24675840.

The previous prime is 54781747. The next prime is 54781757. The reversal of 54781755 is 55718745.

It is not a de Polignac number, because 54781755 - 2³ = 54781747 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54781757) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 53145 + ... + 54165.

It is an arithmetic number, because the mean of its divisors is an integer number (2155398).

Almost surely, 2^54781755 is an apocalyptic number.

54781755 is a deficient number, since it is larger than the sum of its proper divisors (48677349).

54781755 is a wasteful number, since it uses less digits than its factorization.

54781755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116 (or 1109 counting only the distinct ones).

The product of its digits is 196000, while the sum is 42.

The square root of 54781755 is about 7401.4697864681. The cubic root of 54781755 is about 379.7915638990.

The spelling of 54781755 in words is "fifty-four million, seven hundred eighty-one thousand, seven hundred fifty-five".