253603253 has 2 divisors, whose sum is σ = 253603254. Its totient is φ = 253603252.

The previous prime is 253603249. The next prime is 253603307. The reversal of 253603253 is 352306352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 240808324 + 12794929 = 15518^2 + 3577^2 .

It is a cyclic number.

It is not a de Polignac number, because 253603253 - 2² = 253603249 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253603213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126801626 + 126801627.

It is an arithmetic number, because the mean of its divisors is an integer number (126801627).

Almost surely, 2^253603253 is an apocalyptic number.

It is an amenable number.

253603253 is a deficient number, since it is larger than the sum of its proper divisors (1).

253603253 is an equidigital number, since it uses as much as digits as its factorization.

253603253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 29.

The square root of 253603253 is about 15924.9255257285. The cubic root of 253603253 is about 632.9726426054.

The spelling of 253603253 in words is "two hundred fifty-three million, six hundred three thousand, two hundred fifty-three".