253216017 has 16 divisors (see below), whose sum is σ = 375461760. Its totient is φ = 168663600.

The previous prime is 253216013. The next prime is 253216027. The reversal of 253216017 is 710612352.

It is a happy number.

253216017 is a `hidden beast` number, since 2 + 53 + 2 + 1 + 601 + 7 = 666.

253216017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 253216017 - 2² = 253216013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (253216013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33892 + ... + 40682.

It is an arithmetic number, because the mean of its divisors is an integer number (23466360).

Almost surely, 2^253216017 is an apocalyptic number.

253216017 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

253216017 is a deficient number, since it is larger than the sum of its proper divisors (122245743).

253216017 is a wasteful number, since it uses less digits than its factorization.

253216017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8181 (or 8175 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 253216017 is about 15912.7627079649. The cubic root of 253216017 is about 632.6503088644.

Adding to 253216017 its reverse (710612352), we get a palindrome (963828369).

The spelling of 253216017 in words is "two hundred fifty-three million, two hundred sixteen thousand, seventeen".