331352020525 has 12 divisors (see below), whose sum is σ = 435045712212. Its totient is φ = 249488579840.

The previous prime is 331352020523. The next prime is 331352020543. The reversal of 331352020525 is 525020253133.

It can be written as a sum of positive squares in 6 ways, for example, as 37355998729 + 293996021796 = 193277^2 + 542214^2 .

It is not a de Polignac number, because 331352020525 - 2¹ = 331352020523 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331352020523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 389825482 + ... + 389826331.

It is an arithmetic number, because the mean of its divisors is an integer number (36253809351).

Almost surely, 2^331352020525 is an apocalyptic number.

It is an amenable number.

331352020525 is a deficient number, since it is larger than the sum of its proper divisors (103693691687).

331352020525 is a wasteful number, since it uses less digits than its factorization.

331352020525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779651840 (or 779651835 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 31.

Adding to 331352020525 its reverse (525020253133), we get a palindrome (856372273658).

The spelling of 331352020525 in words is "three hundred thirty-one billion, three hundred fifty-two million, twenty thousand, five hundred twenty-five".