2253018521 has 16 divisors (see below), whose sum is σ = 2554263936. Its totient is φ = 1971653376.

The previous prime is 2253018473. The next prime is 2253018529. The reversal of 2253018521 is 1258103522.

It is a cyclic number.

It is not a de Polignac number, because 2253018521 - 2²² = 2248824217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2253018529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 446 + ... + 67128.

It is an arithmetic number, because the mean of its divisors is an integer number (159641496).

Almost surely, 2^2253018521 is an apocalyptic number.

It is an amenable number.

2253018521 is a deficient number, since it is larger than the sum of its proper divisors (301245415).

2253018521 is a wasteful number, since it uses less digits than its factorization.

2253018521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66832.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 2253018521 is about 47465.9722432818. The cubic root of 2253018521 is about 1310.9564176946.

The spelling of 2253018521 in words is "two billion, two hundred fifty-three million, eighteen thousand, five hundred twenty-one".