125522531505 has 48 divisors (see below), whose sum is σ = 250443123840. Its totient is φ = 56968890624.

The previous prime is 125522531471. The next prime is 125522531557. The reversal of 125522531505 is 505135225521.

125522531505 is a `hidden beast` number, since 1 + 2 + 55 + 22 + 531 + 50 + 5 = 666.

It is not a de Polignac number, because 125522531505 - 2¹⁰ = 125522530481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125522531505.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1389612 + ... + 1477181.

It is an arithmetic number, because the mean of its divisors is an integer number (5217565080).

Almost surely, 2^125522531505 is an apocalyptic number.

125522531505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125522531505 is a deficient number, since it is larger than the sum of its proper divisors (124920592335).

125522531505 is a wasteful number, since it uses less digits than its factorization.

125522531505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2866950 (or 2866947 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

The spelling of 125522531505 in words is "one hundred twenty-five billion, five hundred twenty-two million, five hundred thirty-one thousand, five hundred five".