53529989 has 2 divisors, whose sum is σ = 53529990. Its totient is φ = 53529988.

The previous prime is 53529977. The next prime is 53530007. The reversal of 53529989 is 98992535.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49589764 + 3940225 = 7042^2 + 1985^2 .

It is a cyclic number.

It is not a de Polignac number, because 53529989 - 2²⁰ = 52481413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53529929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26764994 + 26764995.

It is an arithmetic number, because the mean of its divisors is an integer number (26764995).

Almost surely, 2^53529989 is an apocalyptic number.

It is an amenable number.

53529989 is a deficient number, since it is larger than the sum of its proper divisors (1).

53529989 is an equidigital number, since it uses as much as digits as its factorization.

53529989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 874800, while the sum is 50.

The square root of 53529989 is about 7316.4191378023. The cubic root of 53529989 is about 376.8764942411.

The spelling of 53529989 in words is "fifty-three million, five hundred twenty-nine thousand, nine hundred eighty-nine".