54371971 has 2 divisors, whose sum is σ = 54371972. Its totient is φ = 54371970.

The previous prime is 54371959. The next prime is 54372007. The reversal of 54371971 is 17917345.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54371971 - 2⁹ = 54371459 is a prime.

It is a super-2 number, since 2×54371971² = 5912622460849682, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54371971.

It is not a weakly prime, because it can be changed into another prime (54371951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27185985 + 27185986.

It is an arithmetic number, because the mean of its divisors is an integer number (27185986).

Almost surely, 2^54371971 is an apocalyptic number.

54371971 is a deficient number, since it is larger than the sum of its proper divisors (1).

54371971 is an equidigital number, since it uses as much as digits as its factorization.

54371971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26460, while the sum is 37.

The square root of 54371971 is about 7373.7352135807. The cubic root of 54371971 is about 378.8422077598.

The spelling of 54371971 in words is "fifty-four million, three hundred seventy-one thousand, nine hundred seventy-one".