253517053 has 2 divisors, whose sum is σ = 253517054. Its totient is φ = 253517052.

The previous prime is 253516979. The next prime is 253517059. The reversal of 253517053 is 350715352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208600249 + 44916804 = 14443^2 + 6702^2 .

It is a cyclic number.

It is not a de Polignac number, because 253517053 - 2²¹ = 251419901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253517059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126758526 + 126758527.

It is an arithmetic number, because the mean of its divisors is an integer number (126758527).

Almost surely, 2^253517053 is an apocalyptic number.

It is an amenable number.

253517053 is a deficient number, since it is larger than the sum of its proper divisors (1).

253517053 is an equidigital number, since it uses as much as digits as its factorization.

253517053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15750, while the sum is 31.

The square root of 253517053 is about 15922.2188466306. The cubic root of 253517053 is about 632.9009184664.

The spelling of 253517053 in words is "two hundred fifty-three million, five hundred seventeen thousand, fifty-three".