125126535572 has 12 divisors (see below), whose sum is σ = 219080338176. Its totient is φ = 62532153240.

The previous prime is 125126535553. The next prime is 125126535581. The reversal of 125126535572 is 275535621521.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7769588 + ... + 7785675.

It is an arithmetic number, because the mean of its divisors is an integer number (18256694848).

Almost surely, 2^125126535572 is an apocalyptic number.

It is an amenable number.

125126535572 is a deficient number, since it is larger than the sum of its proper divisors (93953802604).

125126535572 is a wasteful number, since it uses less digits than its factorization.

125126535572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15557278 (or 15557276 counting only the distinct ones).

The product of its digits is 630000, while the sum is 44.

The spelling of 125126535572 in words is "one hundred twenty-five billion, one hundred twenty-six million, five hundred thirty-five thousand, five hundred seventy-two".