253216604 has 12 divisors (see below), whose sum is σ = 455105784. Its totient is φ = 123186384.

The previous prime is 253216583. The next prime is 253216609. The reversal of 253216604 is 406612352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253216609) 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 in 3 ways as a sum of consecutive naturals, for example, 855314 + ... + 855609.

It is an arithmetic number, because the mean of its divisors is an integer number (37925482).

Almost surely, 2^253216604 is an apocalyptic number.

It is an amenable number.

253216604 is a deficient number, since it is larger than the sum of its proper divisors (201889180).

253216604 is a wasteful number, since it uses less digits than its factorization.

253216604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710964 (or 1710962 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 253216604 is about 15912.7811522688. The cubic root of 253216604 is about 632.6507977295.

Adding to 253216604 its reverse (406612352), we get a palindrome (659828956).

The spelling of 253216604 in words is "two hundred fifty-three million, two hundred sixteen thousand, six hundred four".