253670251 has 2 divisors, whose sum is σ = 253670252. Its totient is φ = 253670250.

The previous prime is 253670231. The next prime is 253670267. The reversal of 253670251 is 152076352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 253670251 - 2²¹ = 251573099 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (253670231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126835125 + 126835126.

It is an arithmetic number, because the mean of its divisors is an integer number (126835126).

Almost surely, 2^253670251 is an apocalyptic number.

253670251 is a deficient number, since it is larger than the sum of its proper divisors (1).

253670251 is an equidigital number, since it uses as much as digits as its factorization.

253670251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 253670251 is about 15927.0289445333. The cubic root of 253670251 is about 633.0283781775.

The spelling of 253670251 in words is "two hundred fifty-three million, six hundred seventy thousand, two hundred fifty-one".