53971199 has 2 divisors, whose sum is σ = 53971200. Its totient is φ = 53971198.

The previous prime is 53971189. The next prime is 53971201. The reversal of 53971199 is 99117935.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53971199 - 2¹² = 53967103 is a prime.

Together with 53971201, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53971109) 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, 26985599 + 26985600.

It is an arithmetic number, because the mean of its divisors is an integer number (26985600).

Almost surely, 2^53971199 is an apocalyptic number.

53971199 is a deficient number, since it is larger than the sum of its proper divisors (1).

53971199 is an equidigital number, since it uses as much as digits as its factorization.

53971199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 76545, while the sum is 44.

The square root of 53971199 is about 7346.5093071472. The cubic root of 53971199 is about 377.9091048957.

It can be divided in two parts, 5397 and 1199, that multiplied together give a triangular number (6471003 = T₃₅₉₇).

The spelling of 53971199 in words is "fifty-three million, nine hundred seventy-one thousand, one hundred ninety-nine".