53429393 has 2 divisors, whose sum is σ = 53429394. Its totient is φ = 53429392.

The previous prime is 53429347. The next prime is 53429401. The reversal of 53429393 is 39392435.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53246209 + 183184 = 7297^2 + 428^2 .

It is a cyclic number.

It is not a de Polignac number, because 53429393 - 2⁶ = 53429329 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53129393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26714696 + 26714697.

It is an arithmetic number, because the mean of its divisors is an integer number (26714697).

Almost surely, 2^53429393 is an apocalyptic number.

It is an amenable number.

53429393 is a deficient number, since it is larger than the sum of its proper divisors (1).

53429393 is an equidigital number, since it uses as much as digits as its factorization.

53429393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87480, while the sum is 38.

The square root of 53429393 is about 7309.5412304740. The cubic root of 53429393 is about 376.6402650285.

The spelling of 53429393 in words is "fifty-three million, four hundred twenty-nine thousand, three hundred ninety-three".