54371591 has 2 divisors, whose sum is σ = 54371592. Its totient is φ = 54371590.

The previous prime is 54371579. The next prime is 54371599. The reversal of 54371591 is 19517345.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54371591 - 2¹⁴ = 54355207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54371599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27185795 + 27185796.

It is an arithmetic number, because the mean of its divisors is an integer number (27185796).

Almost surely, 2^54371591 is an apocalyptic number.

54371591 is a deficient number, since it is larger than the sum of its proper divisors (1).

54371591 is an equidigital number, since it uses as much as digits as its factorization.

54371591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18900, while the sum is 35.

The square root of 54371591 is about 7373.7094464048. The cubic root of 54371591 is about 378.8413251949.

The spelling of 54371591 in words is "fifty-four million, three hundred seventy-one thousand, five hundred ninety-one".