51254004052 has 6 divisors (see below), whose sum is σ = 89694507098. Its totient is φ = 25627002024.

The previous prime is 51254004037. The next prime is 51254004077. The reversal of 51254004052 is 25040045215.

It can be written as a sum of positive squares in only one way, i.e., 43165879696 + 8088124356 = 207764^2 + 89934^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51254004052.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6406750503 + ... + 6406750510.

Almost surely, 2^51254004052 is an apocalyptic number.

It is an amenable number.

51254004052 is a deficient number, since it is larger than the sum of its proper divisors (38440503046).

51254004052 is a wasteful number, since it uses less digits than its factorization.

51254004052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12813501017 (or 12813501015 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

Adding to 51254004052 its reverse (25040045215), we get a palindrome (76294049267).

The spelling of 51254004052 in words is "fifty-one billion, two hundred fifty-four million, four thousand, fifty-two".