53451239 has 2 divisors, whose sum is σ = 53451240. Its totient is φ = 53451238.

The previous prime is 53451197. The next prime is 53451271. The reversal of 53451239 is 93215435.

It is an a-pointer prime, because the next prime (53451271) can be obtained adding 53451239 to its sum of digits (32).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53451239 - 2¹² = 53447143 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53450239) 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, 26725619 + 26725620.

It is an arithmetic number, because the mean of its divisors is an integer number (26725620).

Almost surely, 2^53451239 is an apocalyptic number.

53451239 is a deficient number, since it is larger than the sum of its proper divisors (1).

53451239 is an equidigital number, since it uses as much as digits as its factorization.

53451239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16200, while the sum is 32.

The square root of 53451239 is about 7311.0354259845. The cubic root of 53451239 is about 376.6915910970.

The spelling of 53451239 in words is "fifty-three million, four hundred fifty-one thousand, two hundred thirty-nine".