53921471 has 2 divisors, whose sum is σ = 53921472. Its totient is φ = 53921470.

The previous prime is 53921393. The next prime is 53921479. The reversal of 53921471 is 17412935.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53921471 is a prime.

It is a super-3 number, since 3×53921471³ (a number of 24 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53921479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26960735 + 26960736.

It is an arithmetic number, because the mean of its divisors is an integer number (26960736).

Almost surely, 2^53921471 is an apocalyptic number.

53921471 is a deficient number, since it is larger than the sum of its proper divisors (1).

53921471 is an equidigital number, since it uses as much as digits as its factorization.

53921471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 32.

The square root of 53921471 is about 7343.1240626861. The cubic root of 53921471 is about 377.7930032278.

The spelling of 53921471 in words is "fifty-three million, nine hundred twenty-one thousand, four hundred seventy-one".