54776591 has 2 divisors, whose sum is σ = 54776592. Its totient is φ = 54776590.

The previous prime is 54776537. The next prime is 54776599. The reversal of 54776591 is 19567745.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54776591 is a prime.

It is a Chen prime.

It is equal to p_3269699 and since 54776591 and 3269699 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54776599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27388295 + 27388296.

It is an arithmetic number, because the mean of its divisors is an integer number (27388296).

Almost surely, 2^54776591 is an apocalyptic number.

54776591 is a deficient number, since it is larger than the sum of its proper divisors (1).

54776591 is an equidigital number, since it uses as much as digits as its factorization.

54776591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 264600, while the sum is 44.

The square root of 54776591 is about 7401.1209286162. The cubic root of 54776591 is about 379.7796298451.

The spelling of 54776591 in words is "fifty-four million, seven hundred seventy-six thousand, five hundred ninety-one".