503212690 has 16 divisors (see below), whose sum is σ = 907165080. Its totient is φ = 200977920.

The previous prime is 503212627. The next prime is 503212747. The reversal of 503212690 is 96212305.

It can be written as a sum of positive squares in 4 ways, for example, as 501446449 + 1766241 = 22393^2 + 1329^2 .

It is a super-2 number, since 2×503212690² = 506446022754072200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31455 + ... + 44674.

Almost surely, 2^503212690 is an apocalyptic number.

503212690 is a deficient number, since it is larger than the sum of its proper divisors (403952390).

503212690 is a wasteful number, since it uses less digits than its factorization.

503212690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76797.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 503212690 is about 22432.4026800519. The cubic root of 503212690 is about 795.3968404953.

Adding to 503212690 its reverse (96212305), we get a palindrome (599424995).

The spelling of 503212690 in words is "five hundred three million, two hundred twelve thousand, six hundred ninety".