125120044551 has 16 divisors (see below), whose sum is σ = 174188542464. Its totient is φ = 79736974944.

The previous prime is 125120044501. The next prime is 125120044573. The reversal of 125120044551 is 155440021521.

It is not a de Polignac number, because 125120044551 - 2¹⁴ = 125120028167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125120044501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 453316 + ... + 675081.

It is an arithmetic number, because the mean of its divisors is an integer number (10886783904).

Almost surely, 2^125120044551 is an apocalyptic number.

125120044551 is a deficient number, since it is larger than the sum of its proper divisors (49068497913).

125120044551 is a wasteful number, since it uses less digits than its factorization.

125120044551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130030.

The product of its (nonzero) digits is 8000, while the sum is 30.

The spelling of 125120044551 in words is "one hundred twenty-five billion, one hundred twenty million, forty-four thousand, five hundred fifty-one".