53537789 has 2 divisors, whose sum is σ = 53537790. Its totient is φ = 53537788.

The previous prime is 53537761. The next prime is 53537797. The reversal of 53537789 is 98773535.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48511225 + 5026564 = 6965^2 + 2242^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53537789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53537749) 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, 26768894 + 26768895.

It is an arithmetic number, because the mean of its divisors is an integer number (26768895).

Almost surely, 2^53537789 is an apocalyptic number.

It is an amenable number.

53537789 is a deficient number, since it is larger than the sum of its proper divisors (1).

53537789 is an equidigital number, since it uses as much as digits as its factorization.

53537789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 793800, while the sum is 47.

The square root of 53537789 is about 7316.9521660320. The cubic root of 53537789 is about 376.8947985844.

The spelling of 53537789 in words is "fifty-three million, five hundred thirty-seven thousand, seven hundred eighty-nine".