503745481 has 8 divisors (see below), whose sum is σ = 512634240. Its totient is φ = 494868528.

The previous prime is 503745467. The next prime is 503745493. The reversal of 503745481 is 184547305.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 503745481 - 2⁵ = 503745449 is a prime.

It is a super-2 number, since 2×503745481² = 507519019255842722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 503745481.

It is not an unprimeable number, because it can be changed into a prime (503745401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170640 + ... + 173566.

It is an arithmetic number, because the mean of its divisors is an integer number (64079280).

Almost surely, 2^503745481 is an apocalyptic number.

It is an amenable number.

503745481 is a deficient number, since it is larger than the sum of its proper divisors (8888759).

503745481 is a wasteful number, since it uses less digits than its factorization.

503745481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5903.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 503745481 is about 22444.2750161372. The cubic root of 503745481 is about 795.6774579566.

It can be divided in two parts, 50374 and 5481, that added together give a palindrome (55855).

The spelling of 503745481 in words is "five hundred three million, seven hundred forty-five thousand, four hundred eighty-one".