2053031221 has 8 divisors (see below), whose sum is σ = 2143237824. Its totient is φ = 1962903360.

The previous prime is 2053031207. The next prime is 2053031291. The reversal of 2053031221 is 1221303502.

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-2053031221 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 (2053031291) 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, 37126 + ... + 74056.

It is an arithmetic number, because the mean of its divisors is an integer number (267904728).

Almost surely, 2^2053031221 is an apocalyptic number.

It is an amenable number.

2053031221 is a deficient number, since it is larger than the sum of its proper divisors (90206603).

2053031221 is a wasteful number, since it uses less digits than its factorization.

2053031221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39371.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 2053031221 is about 45310.3875617943. The cubic root of 2053031221 is about 1270.9599085474.

Adding to 2053031221 its reverse (1221303502), we get a palindrome (3274334723).

The spelling of 2053031221 in words is "two billion, fifty-three million, thirty-one thousand, two hundred twenty-one".