54977491 has 2 divisors, whose sum is σ = 54977492. Its totient is φ = 54977490.

The previous prime is 54977471. The next prime is 54977509. The reversal of 54977491 is 19477945.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54977491 - 2⁹ = 54976979 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54977441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27488745 + 27488746.

It is an arithmetic number, because the mean of its divisors is an integer number (27488746).

Almost surely, 2^54977491 is an apocalyptic number.

54977491 is a deficient number, since it is larger than the sum of its proper divisors (1).

54977491 is an equidigital number, since it uses as much as digits as its factorization.

54977491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 317520, while the sum is 46.

The square root of 54977491 is about 7414.6807753267. The cubic root of 54977491 is about 380.2433598112.

The spelling of 54977491 in words is "fifty-four million, nine hundred seventy-seven thousand, four hundred ninety-one".