54145503 has 24 divisors (see below), whose sum is σ = 81664128. Its totient is φ = 35849304.

The previous prime is 54145501. The next prime is 54145513. The reversal of 54145503 is 30554145.

It is not a de Polignac number, because 54145503 - 2¹ = 54145501 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54145501) 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, 38926 + ... + 40292.

It is an arithmetic number, because the mean of its divisors is an integer number (3402672).

Almost surely, 2^54145503 is an apocalyptic number.

54145503 is a deficient number, since it is larger than the sum of its proper divisors (27518625).

54145503 is a wasteful number, since it uses less digits than its factorization.

54145503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545 (or 1533 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 54145503 is about 7358.3627934480. The cubic root of 54145503 is about 378.3154962362.

Adding to 54145503 its reverse (30554145), we get a palindrome (84699648).

The spelling of 54145503 in words is "fifty-four million, one hundred forty-five thousand, five hundred three".