503040051061 has 4 divisors (see below), whose sum is σ = 503113784992. Its totient is φ = 502966317132.

The previous prime is 503040051049. The next prime is 503040051067. The reversal of 503040051061 is 160150040305.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 503040051061 - 2³⁵ = 468680312693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503040051067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36856731 + ... + 36870376.

It is an arithmetic number, because the mean of its divisors is an integer number (125778446248).

Almost surely, 2^503040051061 is an apocalyptic number.

It is an amenable number.

503040051061 is a deficient number, since it is larger than the sum of its proper divisors (73733931).

503040051061 is an equidigital number, since it uses as much as digits as its factorization.

503040051061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73733930.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 503040051061 its reverse (160150040305), we get a palindrome (663190091366).

The spelling of 503040051061 in words is "five hundred three billion, forty million, fifty-one thousand, sixty-one".