253351603 has 2 divisors, whose sum is σ = 253351604. Its totient is φ = 253351602.

The previous prime is 253351597. The next prime is 253351621. The reversal of 253351603 is 306153352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253351603 - 2¹³ = 253343411 is a prime.

It is not a weakly prime, because it can be changed into another prime (253351633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126675801 + 126675802.

It is an arithmetic number, because the mean of its divisors is an integer number (126675802).

Almost surely, 2^253351603 is an apocalyptic number.

253351603 is a deficient number, since it is larger than the sum of its proper divisors (1).

253351603 is an equidigital number, since it uses as much as digits as its factorization.

253351603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 28.

The square root of 253351603 is about 15917.0224288339. The cubic root of 253351603 is about 632.7632074876.

The spelling of 253351603 in words is "two hundred fifty-three million, three hundred fifty-one thousand, six hundred three".