51252750125 has 12 divisors (see below), whose sum is σ = 63966591156. Its totient is φ = 41000175200.

The previous prime is 51252750053. The next prime is 51252750139. The reversal of 51252750125 is 52105725215.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 6 ways, for example, as 27224340004 + 24028410121 = 164998^2 + 155011^2 .

It is not a de Polignac number, because 51252750125 - 2¹⁶ = 51252684589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2521001 + ... + 2541249.

It is an arithmetic number, because the mean of its divisors is an integer number (5330549263).

Almost surely, 2^51252750125 is an apocalyptic number.

It is an amenable number.

51252750125 is a deficient number, since it is larger than the sum of its proper divisors (12713841031).

51252750125 is an frugal number, since it uses more digits than its factorization.

51252750125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40513 (or 20254 counting only the distinct ones).

The product of its (nonzero) digits is 35000, while the sum is 35.

The spelling of 51252750125 in words is "fifty-one billion, two hundred fifty-two million, seven hundred fifty thousand, one hundred twenty-five".