51005512298 has 8 divisors (see below), whose sum is σ = 82393519908. Its totient is φ = 23541005664.

The previous prime is 51005512291. The next prime is 51005512343. The reversal of 51005512298 is 89221550015.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 42455366209 + 8550146089 = 206047^2 + 92467^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (51005512291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 980875211 + ... + 980875262.

Almost surely, 2^51005512298 is an apocalyptic number.

51005512298 is a deficient number, since it is larger than the sum of its proper divisors (31388007610).

51005512298 is a wasteful number, since it uses less digits than its factorization.

51005512298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1961750488.

The product of its (nonzero) digits is 36000, while the sum is 38.

Adding to 51005512298 its sum of digits (38), we get a square (51005512336 = 225844²).

The spelling of 51005512298 in words is "fifty-one billion, five million, five hundred twelve thousand, two hundred ninety-eight".