51245004352 has 28 divisors (see below), whose sum is σ = 101977422156. Its totient is φ = 25549905920.

The previous prime is 51245004299. The next prime is 51245004359. The reversal of 51245004352 is 25340054215.

51245004352 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 18056909376 + 33188094976 = 134376^2 + 182176^2 .

It is not an unprimeable number, because it can be changed into a prime (51245004359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1111549 + ... + 1156732.

Almost surely, 2^51245004352 is an apocalyptic number.

It is an amenable number.

51245004352 is a deficient number, since it is larger than the sum of its proper divisors (50732417804).

51245004352 is a wasteful number, since it uses less digits than its factorization.

51245004352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2268646 (or 2268636 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 51245004352 its reverse (25340054215), we get a palindrome (76585058567).

The spelling of 51245004352 in words is "fifty-one billion, two hundred forty-five million, four thousand, three hundred fifty-two".