503440604354 has 4 divisors (see below), whose sum is σ = 755160906534. Its totient is φ = 251720302176.

The previous prime is 503440604353. The next prime is 503440604393. The reversal of 503440604354 is 453406044305.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 366965773729 + 136474830625 = 605777^2 + 369425^2 .

It is a super-2 number, since 2×503440604354² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (503440604353) 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 as a sum of consecutive naturals, namely, 125860151087 + ... + 125860151090.

Almost surely, 2^503440604354 is an apocalyptic number.

503440604354 is a deficient number, since it is larger than the sum of its proper divisors (251720302180).

503440604354 is a wasteful number, since it uses less digits than its factorization.

503440604354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251720302179.

The product of its (nonzero) digits is 345600, while the sum is 38.

Adding to 503440604354 its reverse (453406044305), we get a palindrome (956846648659).

The spelling of 503440604354 in words is "five hundred three billion, four hundred forty million, six hundred four thousand, three hundred fifty-four".