53531789 has 2 divisors, whose sum is σ = 53531790. Its totient is φ = 53531788.

The previous prime is 53531771. The next prime is 53531813. The reversal of 53531789 is 98713535.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52809289 + 722500 = 7267^2 + 850^2 .

It is a cyclic number.

It is not a de Polignac number, because 53531789 - 2¹⁶ = 53466253 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53531719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26765894 + 26765895.

It is an arithmetic number, because the mean of its divisors is an integer number (26765895).

Almost surely, 2^53531789 is an apocalyptic number.

It is an amenable number.

53531789 is a deficient number, since it is larger than the sum of its proper divisors (1).

53531789 is an equidigital number, since it uses as much as digits as its factorization.

53531789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 41.

The square root of 53531789 is about 7316.5421477635. The cubic root of 53531789 is about 376.8807184781.

The spelling of 53531789 in words is "fifty-three million, five hundred thirty-one thousand, seven hundred eighty-nine".