54431403 has 32 divisors (see below), whose sum is σ = 81613056. Its totient is φ = 32047488.

The previous prime is 54431393. The next prime is 54431411. The reversal of 54431403 is 30413445.

It is not a de Polignac number, because 54431403 - 2⁴ = 54431387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54431473) 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, 96400 + ... + 96962.

It is an arithmetic number, because the mean of its divisors is an integer number (2550408).

Almost surely, 2^54431403 is an apocalyptic number.

54431403 is a deficient number, since it is larger than the sum of its proper divisors (27181653).

54431403 is a wasteful number, since it uses less digits than its factorization.

54431403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 54431403 is about 7377.7640921894. The cubic root of 54431403 is about 378.9801903213.

Adding to 54431403 its reverse (30413445), we get a palindrome (84844848).

The spelling of 54431403 in words is "fifty-four million, four hundred thirty-one thousand, four hundred three".