9090954550 has 12 divisors (see below), whose sum is σ = 16909175556. Its totient is φ = 3636381800.

The previous prime is 9090954541. The next prime is 9090954571. The reversal of 9090954550 is 554590909.

It is a self number, because there is not a number n which added to its sum of digits gives 9090954550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 90909496 + ... + 90909595.

It is an arithmetic number, because the mean of its divisors is an integer number (1409097963).

Almost surely, 2^9090954550 is an apocalyptic number.

9090954550 is a deficient number, since it is larger than the sum of its proper divisors (7818221006).

9090954550 is a wasteful number, since it uses less digits than its factorization.

9090954550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181819103 (or 181819098 counting only the distinct ones).

The product of its (nonzero) digits is 364500, while the sum is 46.

The square root of 9090954550 is about 95346.4973137451. The cubic root of 9090954550 is about 2087.0675012053.

The spelling of 9090954550 in words is "nine billion, ninety million, nine hundred fifty-four thousand, five hundred fifty".