253445240541153 has 4 divisors (see below), whose sum is σ = 337926987388208. Its totient is φ = 168963493694100.

The previous prime is 253445240541137. The next prime is 253445240541161. The reversal of 253445240541153 is 351145042544352.

It is a happy number.

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 not a de Polignac number, because 253445240541153 - 2⁴ = 253445240541137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253445240543153) 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, 42240873423523 + ... + 42240873423528.

It is an arithmetic number, because the mean of its divisors is an integer number (84481746847052).

Almost surely, 2^{253445240541153} is an apocalyptic number.

It is an amenable number.

253445240541153 is a deficient number, since it is larger than the sum of its proper divisors (84481746847055).

253445240541153 is an equidigital number, since it uses as much as digits as its factorization.

253445240541153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84481746847054.

The product of its (nonzero) digits is 5760000, while the sum is 48.

The spelling of 253445240541153 in words is "two hundred fifty-three trillion, four hundred forty-five billion, two hundred forty million, five hundred forty-one thousand, one hundred fifty-three".