125474646474522 has 72 divisors (see below), whose sum is σ = 283211349194592. Its totient is φ = 41690395650600.

The previous prime is 125474646474511. The next prime is 125474646474553. The reversal of 125474646474522 is 225474646474521.

It is a happy number.

125474646474522 is a `hidden beast` number, since 1 + 2 + 5 + 4 + 7 + 4 + 64 + 6 + 47 + 4 + 522 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 125474646474522.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11292304 + ... + 19454187.

It is an arithmetic number, because the mean of its divisors is an integer number (3933490961036).

Almost surely, 2^{125474646474522} is an apocalyptic number.

125474646474522 is an abundant number, since it is smaller than the sum of its proper divisors (157736702720070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125474646474522 is an frugal number, since it uses more digits than its factorization.

125474646474522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30746828 (or 30746807 counting only the distinct ones).

The product of its digits is 361267200, while the sum is 63.

Subtracting 125474646474522 from its reverse (225474646474521), we obtain a palindrome (99999999999999).

The spelling of 125474646474522 in words is "one hundred twenty-five trillion, four hundred seventy-four billion, six hundred forty-six million, four hundred seventy-four thousand, five hundred twenty-two".