503601053561 has 8 divisors (see below), whose sum is σ = 506038147104. Its totient is φ = 501164435520.

The previous prime is 503601053539. The next prime is 503601053591. The reversal of 503601053561 is 165350106305.

It is a happy number.

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 503601053561 - 2¹⁸ = 503600791417 is a prime.

It is a super-2 number, since 2×503601053561² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503601053591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2104730 + ... + 2331756.

It is an arithmetic number, because the mean of its divisors is an integer number (63254768388).

Almost surely, 2^503601053561 is an apocalyptic number.

It is an amenable number.

503601053561 is a deficient number, since it is larger than the sum of its proper divisors (2437093543).

503601053561 is a wasteful number, since it uses less digits than its factorization.

503601053561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237751.

The product of its (nonzero) digits is 40500, while the sum is 35.

Adding to 503601053561 its reverse (165350106305), we get a palindrome (668951159866).

The spelling of 503601053561 in words is "five hundred three billion, six hundred one million, fifty-three thousand, five hundred sixty-one".