54977971 has 2 divisors, whose sum is σ = 54977972. Its totient is φ = 54977970.

The previous prime is 54977959. The next prime is 54977999. The reversal of 54977971 is 17977945.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54977971 - 2¹⁵ = 54945203 is a prime.

It is not a weakly prime, because it can be changed into another prime (54977071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27488985 + 27488986.

It is an arithmetic number, because the mean of its divisors is an integer number (27488986).

Almost surely, 2^54977971 is an apocalyptic number.

54977971 is a deficient number, since it is larger than the sum of its proper divisors (1).

54977971 is an equidigital number, since it uses as much as digits as its factorization.

54977971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 555660, while the sum is 49.

The square root of 54977971 is about 7414.7131434736. The cubic root of 54977971 is about 380.2444664234.

The spelling of 54977971 in words is "fifty-four million, nine hundred seventy-seven thousand, nine hundred seventy-one".