253524643 has 2 divisors, whose sum is σ = 253524644. Its totient is φ = 253524642.

The previous prime is 253524637. The next prime is 253524647. The reversal of 253524643 is 346425352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 253524643 - 2⁵ = 253524611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 253524599 and 253524608.

It is not a weakly prime, because it can be changed into another prime (253524647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126762321 + 126762322.

It is an arithmetic number, because the mean of its divisors is an integer number (126762322).

Almost surely, 2^253524643 is an apocalyptic number.

253524643 is a deficient number, since it is larger than the sum of its proper divisors (1).

253524643 is an equidigital number, since it uses as much as digits as its factorization.

253524643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 34.

The square root of 253524643 is about 15922.4571910243. The cubic root of 253524643 is about 632.9072345045.

Adding to 253524643 its reverse (346425352), we get a palindrome (599949995).

The spelling of 253524643 in words is "two hundred fifty-three million, five hundred twenty-four thousand, six hundred forty-three".