503234256551 has 32 divisors (see below), whose sum is σ = 555815070720. Its totient is φ = 452790746496.

The previous prime is 503234256529. The next prime is 503234256563. The reversal of 503234256551 is 155652432305.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-503234256551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 503234256499 and 503234256508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503234256851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96829085 + ... + 96834281.

It is an arithmetic number, because the mean of its divisors is an integer number (17369220960).

Almost surely, 2^503234256551 is an apocalyptic number.

503234256551 is a deficient number, since it is larger than the sum of its proper divisors (52580814169).

503234256551 is a wasteful number, since it uses less digits than its factorization.

503234256551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6423.

The product of its (nonzero) digits is 540000, while the sum is 41.

Adding to 503234256551 its reverse (155652432305), we get a palindrome (658886688856).

The spelling of 503234256551 in words is "five hundred three billion, two hundred thirty-four million, two hundred fifty-six thousand, five hundred fifty-one".