125554244506 has 8 divisors (see below), whose sum is σ = 188815510260. Its totient is φ = 62615741088.

The previous prime is 125554244423. The next prime is 125554244507. The reversal of 125554244506 is 605442455521.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 108093000625 + 17461243881 = 328775^2 + 132141^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (125554244507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80689611 + ... + 80691166.

Almost surely, 2^125554244506 is an apocalyptic number.

125554244506 is a deficient number, since it is larger than the sum of its proper divisors (63261265754).

125554244506 is a wasteful number, since it uses less digits than its factorization.

125554244506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161381168.

The product of its (nonzero) digits is 960000, while the sum is 43.

The spelling of 125554244506 in words is "one hundred twenty-five billion, five hundred fifty-four million, two hundred forty-four thousand, five hundred six".