125525421244 has 6 divisors (see below), whose sum is σ = 219669487184. Its totient is φ = 62762710620.

The previous prime is 125525421173. The next prime is 125525421269. The reversal of 125525421244 is 442124525521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15690677652 + ... + 15690677659.

Almost surely, 2^125525421244 is an apocalyptic number.

It is an amenable number.

125525421244 is a deficient number, since it is larger than the sum of its proper divisors (94144065940).

125525421244 is a wasteful number, since it uses less digits than its factorization.

125525421244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31381355315 (or 31381355313 counting only the distinct ones).

The product of its digits is 128000, while the sum is 37.

Adding to 125525421244 its reverse (442124525521), we get a palindrome (567649946765).

The spelling of 125525421244 in words is "one hundred twenty-five billion, five hundred twenty-five million, four hundred twenty-one thousand, two hundred forty-four".