525143534531 has 48 divisors (see below), whose sum is σ = 676897179840. Its totient is φ = 398558899200.

The previous prime is 525143534519. The next prime is 525143534549. The reversal of 525143534531 is 135435341525.

It is not a de Polignac number, because 525143534531 - 2¹⁰ = 525143533507 is a prime.

It is a super-2 number, since 2×525143534531² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (525143534561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21414305 + ... + 21438813.

It is an arithmetic number, because the mean of its divisors is an integer number (14102024580).

Almost surely, 2^525143534531 is an apocalyptic number.

525143534531 is a deficient number, since it is larger than the sum of its proper divisors (151753645309).

525143534531 is a wasteful number, since it uses less digits than its factorization.

525143534531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25196 (or 25185 counting only the distinct ones).

The product of its digits is 540000, while the sum is 41.

The spelling of 525143534531 in words is "five hundred twenty-five billion, one hundred forty-three million, five hundred thirty-four thousand, five hundred thirty-one".