90554229 has 12 divisors (see below), whose sum is σ = 130883116. Its totient is φ = 60331392.

The previous prime is 90554227. The next prime is 90554239. The reversal of 90554229 is 92245509.

It is a happy number.

90554229 is a `hidden beast` number, since 90 + 5 + 542 + 29 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 80460900 + 10093329 = 8970^2 + 3177^2 .

It is not a de Polignac number, because 90554229 - 2¹ = 90554227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90554193 and 90554202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90554227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25677 + ... + 28989.

Almost surely, 2^90554229 is an apocalyptic number.

It is an amenable number.

90554229 is a deficient number, since it is larger than the sum of its proper divisors (40328887).

90554229 is a wasteful number, since it uses less digits than its factorization.

90554229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6356 (or 6353 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 90554229 is about 9515.9985813366. The cubic root of 90554229 is about 449.0584907672.

The spelling of 90554229 in words is "ninety million, five hundred fifty-four thousand, two hundred twenty-nine".