90052541 has 2 divisors, whose sum is σ = 90052542. Its totient is φ = 90052540.

The previous prime is 90052513. The next prime is 90052549. The reversal of 90052541 is 14525009.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61387225 + 28665316 = 7835^2 + 5354^2 .

It is an emirp because it is prime and its reverse (14525009) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90052541 - 2⁶ = 90052477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90052541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90052549) 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, 45026270 + 45026271.

It is an arithmetic number, because the mean of its divisors is an integer number (45026271).

Almost surely, 2^90052541 is an apocalyptic number.

It is an amenable number.

90052541 is a deficient number, since it is larger than the sum of its proper divisors (1).

90052541 is an equidigital number, since it uses as much as digits as its factorization.

90052541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 90052541 is about 9489.6017303151. The cubic root of 90052541 is about 448.2276641677.

The spelling of 90052541 in words is "ninety million, fifty-two thousand, five hundred forty-one".