90052093 has 4 divisors (see below), whose sum is σ = 90429120. Its totient is φ = 89675068.

The previous prime is 90052051. The next prime is 90052103. The reversal of 90052093 is 39025009.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39025009 = 6247².

It is a cyclic number.

It is not a de Polignac number, because 90052093 - 2¹⁷ = 89921021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90052693) 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 in 3 ways as a sum of consecutive naturals, for example, 188155 + ... + 188632.

It is an arithmetic number, because the mean of its divisors is an integer number (22607280).

Almost surely, 2^90052093 is an apocalyptic number.

It is an amenable number.

90052093 is a deficient number, since it is larger than the sum of its proper divisors (377027).

90052093 is a wasteful number, since it uses less digits than its factorization.

90052093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377026.

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 90052093 is about 9489.5781255017. The cubic root of 90052093 is about 448.2269208745.

The spelling of 90052093 in words is "ninety million, fifty-two thousand, ninety-three".