54005431 has 2 divisors, whose sum is σ = 54005432. Its totient is φ = 54005430.

The previous prime is 54005423. The next prime is 54005437. The reversal of 54005431 is 13450045.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54005431 - 2³ = 54005423 is a prime.

It is a super-2 number, since 2×54005431² = 5833173154991522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54005437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27002715 + 27002716.

It is an arithmetic number, because the mean of its divisors is an integer number (27002716).

Almost surely, 2^54005431 is an apocalyptic number.

54005431 is a deficient number, since it is larger than the sum of its proper divisors (1).

54005431 is an equidigital number, since it uses as much as digits as its factorization.

54005431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 54005431 is about 7348.8387518029. The cubic root of 54005431 is about 377.9889860830.

Adding to 54005431 its reverse (13450045), we get a palindrome (67455476).

The spelling of 54005431 in words is "fifty-four million, five thousand, four hundred thirty-one".