253520207 has 2 divisors, whose sum is σ = 253520208. Its totient is φ = 253520206.

The previous prime is 253520159. The next prime is 253520213. The reversal of 253520207 is 702025352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 253520207 - 2⁶ = 253520143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253520107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126760103 + 126760104.

It is an arithmetic number, because the mean of its divisors is an integer number (126760104).

Almost surely, 2^253520207 is an apocalyptic number.

253520207 is a deficient number, since it is larger than the sum of its proper divisors (1).

253520207 is an equidigital number, since it uses as much as digits as its factorization.

253520207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 253520207 is about 15922.3178903073. The cubic root of 253520207 is about 632.9035430910.

Adding to 253520207 its reverse (702025352), we get a palindrome (955545559).

The spelling of 253520207 in words is "two hundred fifty-three million, five hundred twenty thousand, two hundred seven".