253473497 has 2 divisors, whose sum is σ = 253473498. Its totient is φ = 253473496.

The previous prime is 253473481. The next prime is 253473503. The reversal of 253473497 is 794374352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134467216 + 119006281 = 11596^2 + 10909^2 .

It is a cyclic number.

It is not a de Polignac number, because 253473497 - 2⁴ = 253473481 is a prime.

It is equal to p_13858874 and since 253473497 and 13858874 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (253473457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126736748 + 126736749.

It is an arithmetic number, because the mean of its divisors is an integer number (126736749).

Almost surely, 2^253473497 is an apocalyptic number.

It is an amenable number.

253473497 is a deficient number, since it is larger than the sum of its proper divisors (1).

253473497 is an equidigital number, since it uses as much as digits as its factorization.

253473497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 44.

The square root of 253473497 is about 15920.8510136864. The cubic root of 253473497 is about 632.8646707914.

The spelling of 253473497 in words is "two hundred fifty-three million, four hundred seventy-three thousand, four hundred ninety-seven".