2253457621 has 8 divisors (see below), whose sum is σ = 2309061888. Its totient is φ = 2197884000.

The previous prime is 2253457573. The next prime is 2253457631. The reversal of 2253457621 is 1267543522.

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

It is a cyclic number.

It is not a de Polignac number, because 2253457621 - 2⁹ = 2253457109 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 (2253457631) 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, 232686 + ... + 242176.

It is an arithmetic number, because the mean of its divisors is an integer number (288632736).

Almost surely, 2^2253457621 is an apocalyptic number.

It is an amenable number.

2253457621 is a deficient number, since it is larger than the sum of its proper divisors (55604267).

2253457621 is an equidigital number, since it uses as much as digits as its factorization.

2253457621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15323.

The product of its digits is 100800, while the sum is 37.

The square root of 2253457621 is about 47470.5974367292. The cubic root of 2253457621 is about 1311.0415780496.

The spelling of 2253457621 in words is "two billion, two hundred fifty-three million, four hundred fifty-seven thousand, six hundred twenty-one".