531024555531140 has 72 divisors (see below), whose sum is σ = 1225766212214040. Its totient is φ = 193096514068480.

The previous prime is 531024555531109. The next prime is 531024555531241. The reversal of 531024555531140 is 41135555420135.

It can be written as a sum of positive squares in 4 ways, for example, as 46214000455744 + 484810555075396 = 6798088^2 + 22018414^2 .

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 531024555531091 and 531024555531100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140942474 + ... + 144661086.

It is an arithmetic number, because the mean of its divisors is an integer number (17024530725195).

Almost surely, 2^{531024555531140} is an apocalyptic number.

It is an amenable number.

531024555531140 is an abundant number, since it is smaller than the sum of its proper divisors (694741656682900).

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

531024555531140 is a wasteful number, since it uses less digits than its factorization.

531024555531140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3777653 (or 3777640 counting only the distinct ones).

The product of its (nonzero) digits is 900000, while the sum is 44.

The spelling of 531024555531140 in words is "five hundred thirty-one trillion, twenty-four billion, five hundred fifty-five million, five hundred thirty-one thousand, one hundred forty".