2291054521 has 16 divisors (see below), whose sum is σ = 2773647360. Its totient is φ = 1847393280.

The previous prime is 2291054509. The next prime is 2291054533. The reversal of 2291054521 is 1254501922.

It is an interprime number because it is at equal distance from previous prime (2291054509) and next prime (2291054533).

It is a cyclic number.

It is not a de Polignac number, because 2291054521 - 2¹¹ = 2291052473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2291054221) 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 15 ways as a sum of consecutive naturals, for example, 445000 + ... + 450118.

It is an arithmetic number, because the mean of its divisors is an integer number (173352960).

Almost surely, 2^2291054521 is an apocalyptic number.

It is an amenable number.

2291054521 is a deficient number, since it is larger than the sum of its proper divisors (482592839).

2291054521 is a wasteful number, since it uses less digits than its factorization.

2291054521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8904.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 2291054521 is about 47864.9613078293. The cubic root of 2291054521 is about 1318.2925813965.

The spelling of 2291054521 in words is "two billion, two hundred ninety-one million, fifty-four thousand, five hundred twenty-one".