2253403649 has 4 divisors (see below), whose sum is σ = 2575318464. Its totient is φ = 1931488836.

The previous prime is 2253403619. The next prime is 2253403699. The reversal of 2253403649 is 9463043522.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2253403649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2253403619) 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, 160957397 + ... + 160957410.

It is an arithmetic number, because the mean of its divisors is an integer number (643829616).

Almost surely, 2^2253403649 is an apocalyptic number.

It is an amenable number.

2253403649 is a deficient number, since it is larger than the sum of its proper divisors (321914815).

2253403649 is an equidigital number, since it uses as much as digits as its factorization.

2253403649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321914814.

The product of its (nonzero) digits is 155520, while the sum is 38.

The square root of 2253403649 is about 47470.0289551207. The cubic root of 2253403649 is about 1311.0311111563.

The spelling of 2253403649 in words is "two billion, two hundred fifty-three million, four hundred three thousand, six hundred forty-nine".