253171003 has 2 divisors, whose sum is σ = 253171004. Its totient is φ = 253171002.

The previous prime is 253170961. The next prime is 253171007. The reversal of 253171003 is 300171352.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253171003 is a prime.

It is not a weakly prime, because it can be changed into another prime (253171007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126585501 + 126585502.

It is an arithmetic number, because the mean of its divisors is an integer number (126585502).

Almost surely, 2^253171003 is an apocalyptic number.

253171003 is a deficient number, since it is larger than the sum of its proper divisors (1).

253171003 is an equidigital number, since it uses as much as digits as its factorization.

253171003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 253171003 is about 15911.3482458276. The cubic root of 253171003 is about 632.6128180702.

The spelling of 253171003 in words is "two hundred fifty-three million, one hundred seventy-one thousand, three".