253221542383 has 2 divisors, whose sum is σ = 253221542384. Its totient is φ = 253221542382.

The previous prime is 253221542303. The next prime is 253221542389. The reversal of 253221542383 is 383245122352.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253221542383 is a prime.

It is a super-2 number, since 2×253221542383² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253221542389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126610771191 + 126610771192.

It is an arithmetic number, because the mean of its divisors is an integer number (126610771192).

Almost surely, 2^253221542383 is an apocalyptic number.

253221542383 is a deficient number, since it is larger than the sum of its proper divisors (1).

253221542383 is an equidigital number, since it uses as much as digits as its factorization.

253221542383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345600, while the sum is 40.

The spelling of 253221542383 in words is "two hundred fifty-three billion, two hundred twenty-one million, five hundred forty-two thousand, three hundred eighty-three".