523440044325 has 144 divisors (see below), whose sum is σ = 1066102854336. Its totient is φ = 243241574400.

The previous prime is 523440044321. The next prime is 523440044339.

523440044325 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 523440044325 - 2² = 523440044321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 523440044325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523440044321) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 6092869 + ... + 6178181.

It is an arithmetic number, because the mean of its divisors is an integer number (7403492044).

Almost surely, 2^523440044325 is an apocalyptic number.

523440044325 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

523440044325 is an abundant number, since it is smaller than the sum of its proper divisors (542662810011).

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

523440044325 is a wasteful number, since it uses less digits than its factorization.

523440044325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85444 (or 85436 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 36.

It can be divided in two parts, 5234400 and 44325, that added together give a palindrome (5278725).

The spelling of 523440044325 in words is "five hundred twenty-three billion, four hundred forty million, forty-four thousand, three hundred twenty-five".