503025452440 has 96 divisors (see below), whose sum is σ = 1317062985120. Its totient is φ = 172404191232.

The previous prime is 503025452399. The next prime is 503025452459. The reversal of 503025452440 is 44254520305.

It is a junction number, because it is equal to n+sod(n) for n = 503025452396 and 503025452405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5614072 + ... + 5702968.

It is an arithmetic number, because the mean of its divisors is an integer number (13719406095).

Almost surely, 2^503025452440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 503025452440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (658531492560).

503025452440 is an abundant number, since it is smaller than the sum of its proper divisors (814037532680).

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

503025452440 is a wasteful number, since it uses less digits than its factorization.

503025452440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91809 (or 91798 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 34.

Adding to 503025452440 its reverse (44254520305), we get a palindrome (547279972745).

The spelling of 503025452440 in words is "five hundred three billion, twenty-five million, four hundred fifty-two thousand, four hundred forty".