503545005645 has 64 divisors (see below), whose sum is σ = 917893085184. Its totient is φ = 233333464320.

The previous prime is 503545005643. The next prime is 503545005653. The reversal of 503545005645 is 546500545305.

It is not a de Polignac number, because 503545005645 - 2¹ = 503545005643 is a prime.

It is a super-3 number, since 3×503545005645³ (a number of 36 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 503545005597 and 503545005606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503545005643) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4548642 + ... + 4658028.

It is an arithmetic number, because the mean of its divisors is an integer number (14342079456).

Almost surely, 2^503545005645 is an apocalyptic number.

503545005645 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

503545005645 is a deficient number, since it is larger than the sum of its proper divisors (414348079539).

503545005645 is a wasteful number, since it uses less digits than its factorization.

503545005645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110642.

The product of its (nonzero) digits is 900000, while the sum is 42.

The spelling of 503545005645 in words is "five hundred three billion, five hundred forty-five million, five thousand, six hundred forty-five".