253172453 has 2 divisors, whose sum is σ = 253172454. Its totient is φ = 253172452.

The previous prime is 253172429. The next prime is 253172471. The reversal of 253172453 is 354271352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220017889 + 33154564 = 14833^2 + 5758^2 .

It is a cyclic number.

It is not a de Polignac number, because 253172453 - 2⁸ = 253172197 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 (253172053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126586226 + 126586227.

It is an arithmetic number, because the mean of its divisors is an integer number (126586227).

Almost surely, 2^253172453 is an apocalyptic number.

It is an amenable number.

253172453 is a deficient number, since it is larger than the sum of its proper divisors (1).

253172453 is an equidigital number, since it uses as much as digits as its factorization.

253172453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25200, while the sum is 32.

The square root of 253172453 is about 15911.3938107257. The cubic root of 253172453 is about 632.6140258005.

The spelling of 253172453 in words is "two hundred fifty-three million, one hundred seventy-two thousand, four hundred fifty-three".