90551933 has 8 divisors (see below), whose sum is σ = 92188800. Its totient is φ = 88927488.

The previous prime is 90551927. The next prime is 90551941. The reversal of 90551933 is 33915509.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90551933 - 2⁴ = 90551917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90551893 and 90551902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90551033) 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 7 ways as a sum of consecutive naturals, for example, 12278 + ... + 18216.

It is an arithmetic number, because the mean of its divisors is an integer number (11523600).

Almost surely, 2^90551933 is an apocalyptic number.

It is an amenable number.

90551933 is a deficient number, since it is larger than the sum of its proper divisors (1636867).

90551933 is a wasteful number, since it uses less digits than its factorization.

90551933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6211.

The product of its (nonzero) digits is 18225, while the sum is 35.

The square root of 90551933 is about 9515.8779416300. The cubic root of 90551933 is about 449.0546954466.

The spelling of 90551933 in words is "ninety million, five hundred fifty-one thousand, nine hundred thirty-three".