253050302491 has 4 divisors (see below), whose sum is σ = 289200345712. Its totient is φ = 216900259272.

The previous prime is 253050302489. The next prime is 253050302497. The reversal of 253050302491 is 194203050352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 253050302491 - 2¹ = 253050302489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253050302497) 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, 18075021600 + ... + 18075021613.

It is an arithmetic number, because the mean of its divisors is an integer number (72300086428).

Almost surely, 2^253050302491 is an apocalyptic number.

253050302491 is a deficient number, since it is larger than the sum of its proper divisors (36150043221).

253050302491 is an equidigital number, since it uses as much as digits as its factorization.

253050302491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36150043220.

The product of its (nonzero) digits is 32400, while the sum is 34.

The spelling of 253050302491 in words is "two hundred fifty-three billion, fifty million, three hundred two thousand, four hundred ninety-one".