503632401 has 16 divisors (see below), whose sum is σ = 688689408. Its totient is φ = 327225600.

The previous prime is 503632387. The next prime is 503632453. The reversal of 503632401 is 104236305.

It is a happy number.

It is not a de Polignac number, because 503632401 - 2¹¹ = 503630353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (503632301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26571 + ... + 41391.

It is an arithmetic number, because the mean of its divisors is an integer number (43043088).

Almost surely, 2^503632401 is an apocalyptic number.

It is an amenable number.

503632401 is a deficient number, since it is larger than the sum of its proper divisors (185057007).

503632401 is a wasteful number, since it uses less digits than its factorization.

503632401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15112.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 503632401 is about 22441.7557468216. The cubic root of 503632401 is about 795.6179160228.

Adding to 503632401 its reverse (104236305), we get a palindrome (607868706).

The spelling of 503632401 in words is "five hundred three million, six hundred thirty-two thousand, four hundred one".