90552073 has 2 divisors, whose sum is σ = 90552074. Its totient is φ = 90552072.

The previous prime is 90552029. The next prime is 90552083. The reversal of 90552073 is 37025509.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85229824 + 5322249 = 9232^2 + 2307^2 .

It is a cyclic number.

It is not a de Polignac number, because 90552073 - 2²¹ = 88454921 is a prime.

It is not a weakly prime, because it can be changed into another prime (90552083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45276036 + 45276037.

It is an arithmetic number, because the mean of its divisors is an integer number (45276037).

Almost surely, 2^90552073 is an apocalyptic number.

It is an amenable number.

90552073 is a deficient number, since it is larger than the sum of its proper divisors (1).

90552073 is an equidigital number, since it uses as much as digits as its factorization.

90552073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 90552073 is about 9515.8852977534. The cubic root of 90552073 is about 449.0549268704.

The spelling of 90552073 in words is "ninety million, five hundred fifty-two thousand, seventy-three".