125531530532 has 24 divisors (see below), whose sum is σ = 224130719736. Its totient is φ = 61497416448.

The previous prime is 125531530529. The next prime is 125531530549. The reversal of 125531530532 is 235035135521.

It can be written as a sum of positive squares in 4 ways, for example, as 73038305536 + 52493224996 = 270256^2 + 229114^2 .

It is a junction number, because it is equal to n+sod(n) for n = 125531530492 and 125531530501.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248513 + ... + 559304.

It is an arithmetic number, because the mean of its divisors is an integer number (9338779989).

Almost surely, 2^125531530532 is an apocalyptic number.

It is an amenable number.

125531530532 is a deficient number, since it is larger than the sum of its proper divisors (98599189204).

125531530532 is a wasteful number, since it uses less digits than its factorization.

125531530532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808607 (or 808605 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 35.

The spelling of 125531530532 in words is "one hundred twenty-five billion, five hundred thirty-one million, five hundred thirty thousand, five hundred thirty-two".