125544474320 has 20 divisors (see below), whose sum is σ = 291890902980. Its totient is φ = 50217789696.

The previous prime is 125544474317. The next prime is 125544474329. The reversal of 125544474320 is 23474445521.

It can be written as a sum of positive squares in 2 ways, for example, as 41854613056 + 83689861264 = 204584^2 + 289292^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×125544474320² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125544474329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 784652885 + ... + 784653044.

It is an arithmetic number, because the mean of its divisors is an integer number (14594545149).

Almost surely, 2^125544474320 is an apocalyptic number.

125544474320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125544474320 is an abundant number, since it is smaller than the sum of its proper divisors (166346428660).

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

125544474320 is a wasteful number, since it uses less digits than its factorization.

125544474320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569305942 (or 1569305936 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 41.

It can be divided in two parts, 125 and 544474320, that added together give a palindrome (544474445).

The spelling of 125544474320 in words is "one hundred twenty-five billion, five hundred forty-four million, four hundred seventy-four thousand, three hundred twenty".