54389431 has 4 divisors (see below), whose sum is σ = 54461664. Its totient is φ = 54317200.

The previous prime is 54389417. The next prime is 54389473. The reversal of 54389431 is 13498345.

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

It is a cyclic number.

It is not a de Polignac number, because 54389431 - 2⁵ = 54389399 is a prime.

It is a super-2 number, since 2×54389431² = 5916420409007522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54389131) 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, 34975 + ... + 36496.

It is an arithmetic number, because the mean of its divisors is an integer number (13615416).

Almost surely, 2^54389431 is an apocalyptic number.

54389431 is a deficient number, since it is larger than the sum of its proper divisors (72233).

54389431 is an equidigital number, since it uses as much as digits as its factorization.

54389431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72232.

The product of its digits is 51840, while the sum is 37.

The square root of 54389431 is about 7374.9190504032. The cubic root of 54389431 is about 378.8827548586.

The spelling of 54389431 in words is "fifty-four million, three hundred eighty-nine thousand, four hundred thirty-one".