2516227021 has 16 divisors (see below), whose sum is σ = 3245293440. Its totient is φ = 1893084480.

The previous prime is 2516226931. The next prime is 2516227033. The reversal of 2516227021 is 1207226152.

It is not a de Polignac number, because 2516227021 - 2⁷ = 2516226893 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 (2516227061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 561186 + ... + 565651.

It is an arithmetic number, because the mean of its divisors is an integer number (202830840).

Almost surely, 2^2516227021 is an apocalyptic number.

It is an amenable number.

2516227021 is a deficient number, since it is larger than the sum of its proper divisors (729066419).

2516227021 is a wasteful number, since it uses less digits than its factorization.

2516227021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126884.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 2516227021 is about 50162.0077449059. The cubic root of 2516227021 is about 1360.1389385520.

The spelling of 2516227021 in words is "two billion, five hundred sixteen million, two hundred twenty-seven thousand, twenty-one".