253604543 has 2 divisors, whose sum is σ = 253604544. Its totient is φ = 253604542.

The previous prime is 253604537. The next prime is 253604551. The reversal of 253604543 is 345406352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253604543 - 2⁸ = 253604287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253604503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126802271 + 126802272.

It is an arithmetic number, because the mean of its divisors is an integer number (126802272).

Almost surely, 2^253604543 is an apocalyptic number.

253604543 is a deficient number, since it is larger than the sum of its proper divisors (1).

253604543 is an equidigital number, since it uses as much as digits as its factorization.

253604543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 32.

The square root of 253604543 is about 15924.9660282212. The cubic root of 253604543 is about 632.9737158479.

The spelling of 253604543 in words is "two hundred fifty-three million, six hundred four thousand, five hundred forty-three".