54430491 has 4 divisors (see below), whose sum is σ = 72573992. Its totient is φ = 36286992.

The previous prime is 54430469. The next prime is 54430507. The reversal of 54430491 is 19403445.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 54430491 - 2⁹ = 54429979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54430291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9071746 + ... + 9071751.

It is an arithmetic number, because the mean of its divisors is an integer number (18143498).

Almost surely, 2^54430491 is an apocalyptic number.

54430491 is a deficient number, since it is larger than the sum of its proper divisors (18143501).

54430491 is a wasteful number, since it uses less digits than its factorization.

54430491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18143500.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 54430491 is about 7377.7022845870. The cubic root of 54430491 is about 378.9780737008.

The spelling of 54430491 in words is "fifty-four million, four hundred thirty thousand, four hundred ninety-one".