253874521 has 2 divisors, whose sum is σ = 253874522. Its totient is φ = 253874520.

The previous prime is 253874519. The next prime is 253874527. The reversal of 253874521 is 125478352.

253874521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 232898121 + 20976400 = 15261^2 + 4580^2 .

It is a cyclic number.

It is not a de Polignac number, because 253874521 - 2¹ = 253874519 is a prime.

Together with 253874519, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (253874527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126937260 + 126937261.

It is an arithmetic number, because the mean of its divisors is an integer number (126937261).

Almost surely, 2^253874521 is an apocalyptic number.

It is an amenable number.

253874521 is a deficient number, since it is larger than the sum of its proper divisors (1).

253874521 is an equidigital number, since it uses as much as digits as its factorization.

253874521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67200, while the sum is 37.

The square root of 253874521 is about 15933.4403378555. The cubic root of 253874521 is about 633.1982496450.

The spelling of 253874521 in words is "two hundred fifty-three million, eight hundred seventy-four thousand, five hundred twenty-one".