2253539821 has 8 divisors (see below), whose sum is σ = 2554620320. Its totient is φ = 1970706672.

The previous prime is 2253539809. The next prime is 2253539831. The reversal of 2253539821 is 1289353522.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2253539821 is a prime.

It is a super-3 number, since 3×2253539821³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2253539831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4561575 + ... + 4562068.

It is an arithmetic number, because the mean of its divisors is an integer number (319327540).

Almost surely, 2^2253539821 is an apocalyptic number.

It is an amenable number.

2253539821 is a deficient number, since it is larger than the sum of its proper divisors (301080499).

2253539821 is a wasteful number, since it uses less digits than its factorization.

2253539821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9123675.

The product of its digits is 129600, while the sum is 40.

The square root of 2253539821 is about 47471.4632279225. The cubic root of 2253539821 is about 1311.0575189318.

The spelling of 2253539821 in words is "two billion, two hundred fifty-three million, five hundred thirty-nine thousand, eight hundred twenty-one".