256632103 has 16 divisors (see below), whose sum is σ = 316589056. Its totient is φ = 202577760.

The previous prime is 256632083. The next prime is 256632113. The reversal of 256632103 is 301236652.

It is not a de Polignac number, because 256632103 - 2⁵ = 256632071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256632113) 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 15 ways as a sum of consecutive naturals, for example, 39088 + ... + 45178.

It is an arithmetic number, because the mean of its divisors is an integer number (19786816).

Almost surely, 2^256632103 is an apocalyptic number.

256632103 is a deficient number, since it is larger than the sum of its proper divisors (59956953).

256632103 is a wasteful number, since it uses less digits than its factorization.

256632103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6574.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 256632103 is about 16019.7410403539. The cubic root of 256632103 is about 635.4825959166.

Adding to 256632103 its reverse (301236652), we get a palindrome (557868755).

The spelling of 256632103 in words is "two hundred fifty-six million, six hundred thirty-two thousand, one hundred three".