51510150445 has 16 divisors (see below), whose sum is σ = 66580501680. Its totient is φ = 38030529024.

The previous prime is 51510150421. The next prime is 51510150449. The reversal of 51510150445 is 54405101515.

It can be written as a sum of positive squares in 8 ways, for example, as 8357982084 + 43152168361 = 91422^2 + 207731^2 .

It is a cyclic number.

It is not a de Polignac number, because 51510150445 - 2¹¹ = 51510148397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51510150449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251961 + ... + 408049.

It is an arithmetic number, because the mean of its divisors is an integer number (4161281355).

Almost surely, 2^51510150445 is an apocalyptic number.

It is an amenable number.

51510150445 is a deficient number, since it is larger than the sum of its proper divisors (15070351235).

51510150445 is a wasteful number, since it uses less digits than its factorization.

51510150445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161184.

The product of its (nonzero) digits is 10000, while the sum is 31.

The spelling of 51510150445 in words is "fifty-one billion, five hundred ten million, one hundred fifty thousand, four hundred forty-five".