242553353 has 4 divisors (see below), whose sum is σ = 277203840. Its totient is φ = 207902868.

The previous prime is 242553343. The next prime is 242553379. The reversal of 242553353 is 353355242.

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: 353355242 = 2 ⋅176677621.

It is a cyclic number.

It is not a de Polignac number, because 242553353 - 2¹² = 242549257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242553313) 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, 17325233 + ... + 17325246.

It is an arithmetic number, because the mean of its divisors is an integer number (69300960).

Almost surely, 2^242553353 is an apocalyptic number.

It is an amenable number.

242553353 is a deficient number, since it is larger than the sum of its proper divisors (34650487).

242553353 is an equidigital number, since it uses as much as digits as its factorization.

242553353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34650486.

The product of its digits is 54000, while the sum is 32.

The square root of 242553353 is about 15574.1244697736. The cubic root of 242553353 is about 623.6425818934.

The spelling of 242553353 in words is "two hundred forty-two million, five hundred fifty-three thousand, three hundred fifty-three".