54143591 has 2 divisors, whose sum is σ = 54143592. Its totient is φ = 54143590.

The previous prime is 54143569. The next prime is 54143603. The reversal of 54143591 is 19534145.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54143591 - 2¹⁴ = 54127207 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54143501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27071795 + 27071796.

It is an arithmetic number, because the mean of its divisors is an integer number (27071796).

Almost surely, 2^54143591 is an apocalyptic number.

54143591 is a deficient number, since it is larger than the sum of its proper divisors (1).

54143591 is an equidigital number, since it uses as much as digits as its factorization.

54143591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 32.

The square root of 54143591 is about 7358.2328720964. The cubic root of 54143591 is about 378.3110431256.

The spelling of 54143591 in words is "fifty-four million, one hundred forty-three thousand, five hundred ninety-one".