2291653853 has 4 divisors (see below), whose sum is σ = 2292112608. Its totient is φ = 2291195100.

The previous prime is 2291653813. The next prime is 2291653933. The reversal of 2291653853 is 3583561922.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3583561922 = 2 ⋅1791780961.

It is a cyclic number.

It is not a de Polignac number, because 2291653853 - 2¹² = 2291649757 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 (2291653813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221801 + ... + 231902.

It is an arithmetic number, because the mean of its divisors is an integer number (573028152).

Almost surely, 2^2291653853 is an apocalyptic number.

It is an amenable number.

2291653853 is a deficient number, since it is larger than the sum of its proper divisors (458755).

2291653853 is an equidigital number, since it uses as much as digits as its factorization.

2291653853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458754.

The product of its digits is 388800, while the sum is 44.

The square root of 2291653853 is about 47871.2215532464. The cubic root of 2291653853 is about 1318.4075249791.

The spelling of 2291653853 in words is "two billion, two hundred ninety-one million, six hundred fifty-three thousand, eight hundred fifty-three".