503402053444 has 6 divisors (see below), whose sum is σ = 880953593534. Its totient is φ = 251701026720.

The previous prime is 503402053421. The next prime is 503402053501. The reversal of 503402053444 is 444350204305.

It can be written as a sum of positive squares in only one way, i.e., 321318922500 + 182083130944 = 566850^2 + 426712^2 .

It is a super-2 number, since 2×503402053444² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62925256677 + ... + 62925256684.

Almost surely, 2^503402053444 is an apocalyptic number.

It is an amenable number.

503402053444 is a deficient number, since it is larger than the sum of its proper divisors (377551540090).

503402053444 is a wasteful number, since it uses less digits than its factorization.

503402053444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125850513365 (or 125850513363 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 34.

Adding to 503402053444 its reverse (444350204305), we get a palindrome (947752257749).

The spelling of 503402053444 in words is "five hundred three billion, four hundred two million, fifty-three thousand, four hundred forty-four".