51345153522045 has 24 divisors (see below), whose sum is σ = 89066673789912. Its totient is φ = 27363033360000.

The previous prime is 51345153522017. The next prime is 51345153522049. The reversal of 51345153522045 is 54022535154315.

51345153522045 is a `hidden beast` number, since 5 + 1 + 3 + 4 + 51 + 535 + 2 + 20 + 45 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1665408317049 + 49679745204996 = 1290507^2 + 7048386^2 .

It is not a de Polignac number, because 51345153522045 - 2¹⁰ = 51345153521021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51345153522049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 438451606 + ... + 438568695.

It is an arithmetic number, because the mean of its divisors is an integer number (3711111407913).

Almost surely, 2^{51345153522045} is an apocalyptic number.

It is an amenable number.

51345153522045 is a deficient number, since it is larger than the sum of its proper divisors (37721520267867).

51345153522045 is a wasteful number, since it uses less digits than its factorization.

51345153522045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877021613 (or 877021610 counting only the distinct ones).

The product of its (nonzero) digits is 1800000, while the sum is 45.

The spelling of 51345153522045 in words is "fifty-one trillion, three hundred forty-five billion, one hundred fifty-three million, five hundred twenty-two thousand, forty-five".