503601012440 has 32 divisors (see below), whose sum is σ = 1147445352000. Its totient is φ = 198890525184.

The previous prime is 503601012433. The next prime is 503601012451. The reversal of 503601012440 is 44210106305.

It is a super-2 number, since 2×503601012440² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79680545 + ... + 79686864.

It is an arithmetic number, because the mean of its divisors is an integer number (35857667250).

Almost surely, 2^503601012440 is an apocalyptic number.

It is an amenable number.

503601012440 is an abundant number, since it is smaller than the sum of its proper divisors (643844339560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

503601012440 is a wasteful number, since it uses less digits than its factorization.

503601012440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159367499 (or 159367495 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 503601012440 its reverse (44210106305), we get a palindrome (547811118745).

The spelling of 503601012440 in words is "five hundred three billion, six hundred one million, twelve thousand, four hundred forty".