90287053 has 2 divisors, whose sum is σ = 90287054. Its totient is φ = 90287052.

The previous prime is 90287039. The next prime is 90287077. The reversal of 90287053 is 35078209.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72284004 + 18003049 = 8502^2 + 4243^2 .

It is a cyclic number.

It is not a de Polignac number, because 90287053 - 2²¹ = 88189901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90287003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45143526 + 45143527.

It is an arithmetic number, because the mean of its divisors is an integer number (45143527).

Almost surely, 2^90287053 is an apocalyptic number.

It is an amenable number.

90287053 is a deficient number, since it is larger than the sum of its proper divisors (1).

90287053 is an equidigital number, since it uses as much as digits as its factorization.

90287053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 90287053 is about 9501.9499577718. The cubic root of 90287053 is about 448.6164137099.

The spelling of 90287053 in words is "ninety million, two hundred eighty-seven thousand, fifty-three".