503668432 has 10 divisors (see below), whose sum is σ = 975857618. Its totient is φ = 251834208.

The previous prime is 503668423. The next prime is 503668447. The reversal of 503668432 is 234866305.

It can be written as a sum of positive squares in only one way, i.e., 427000896 + 76667536 = 20664^2 + 8756^2 .

It is a junction number, because it is equal to n+sod(n) for n = 503668391 and 503668400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15739623 + ... + 15739654.

Almost surely, 2^503668432 is an apocalyptic number.

It is an amenable number.

503668432 is a deficient number, since it is larger than the sum of its proper divisors (472189186).

503668432 is a wasteful number, since it uses less digits than its factorization.

503668432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31479285 (or 31479279 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 503668432 is about 22442.5584994225. The cubic root of 503668432 is about 795.6368890048.

It can be divided in two parts, 503668 and 432, that added together give a square (504100 = 710²).

The spelling of 503668432 in words is "five hundred three million, six hundred sixty-eight thousand, four hundred thirty-two".