43013311525 has 12 divisors (see below), whose sum is σ = 53549010144. Its totient is φ = 34273550000.

The previous prime is 43013311513. The next prime is 43013311529. The reversal of 43013311525 is 52511331034.

It is a happy number.

It is not a de Polignac number, because 43013311525 - 2¹¹ = 43013309477 is a prime.

It is a super-3 number, since 3×43013311525³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43013311493 and 43013311502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43013311529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3421081 + ... + 3433630.

It is an arithmetic number, because the mean of its divisors is an integer number (4462417512).

Almost surely, 2^43013311525 is an apocalyptic number.

It is an amenable number.

43013311525 is a deficient number, since it is larger than the sum of its proper divisors (10535698619).

43013311525 is a wasteful number, since it uses less digits than its factorization.

43013311525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6854972 (or 6854967 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 43013311525 its reverse (52511331034), we get a palindrome (95524642559).

The spelling of 43013311525 in words is "forty-three billion, thirteen million, three hundred eleven thousand, five hundred twenty-five".