51515031150 has 144 divisors (see below), whose sum is σ = 159867656208. Its totient is φ = 11753856000.

The previous prime is 51515031131. The next prime is 51515031163. The reversal of 51515031150 is 5113051515.

51515031150 is a `hidden beast` number, since 5 + 1 + 5 + 1 + 503 + 1 + 150 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 221941 + ... + 390240.

It is an arithmetic number, because the mean of its divisors is an integer number (1110192057).

Almost surely, 2^51515031150 is an apocalyptic number.

51515031150 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51515031150 is an abundant number, since it is smaller than the sum of its proper divisors (108352625058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51515031150 is a wasteful number, since it uses less digits than its factorization.

51515031150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612227 (or 612219 counting only the distinct ones).

The product of its (nonzero) digits is 1875, while the sum is 27.

Adding to 51515031150 its reverse (5113051515), we get a palindrome (56628082665).

The spelling of 51515031150 in words is "fifty-one billion, five hundred fifteen million, thirty-one thousand, one hundred fifty".