53143499 has 2 divisors, whose sum is σ = 53143500. Its totient is φ = 53143498.

The previous prime is 53143481. The next prime is 53143543. The reversal of 53143499 is 99434135.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53143499 - 2⁸ = 53143243 is a prime.

It is not a weakly prime, because it can be changed into another prime (53143439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26571749 + 26571750.

It is an arithmetic number, because the mean of its divisors is an integer number (26571750).

Almost surely, 2^53143499 is an apocalyptic number.

53143499 is a deficient number, since it is larger than the sum of its proper divisors (1).

53143499 is an equidigital number, since it uses as much as digits as its factorization.

53143499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 38.

The square root of 53143499 is about 7289.9587790330. The cubic root of 53143499 is about 375.9672782563.

The spelling of 53143499 in words is "fifty-three million, one hundred forty-three thousand, four hundred ninety-nine".