51150431050 has 48 divisors (see below), whose sum is σ = 100489505760. Its totient is φ = 19317061440.

The previous prime is 51150431047. The next prime is 51150431083. The reversal of 51150431050 is 5013405115.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 186469 + ... + 370231.

It is an arithmetic number, because the mean of its divisors is an integer number (2093531370).

Almost surely, 2^51150431050 is an apocalyptic number.

51150431050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51150431050 is a deficient number, since it is larger than the sum of its proper divisors (49339074710).

51150431050 is a wasteful number, since it uses less digits than its factorization.

51150431050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184087 (or 184082 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

Adding to 51150431050 its reverse (5013405115), we get a palindrome (56163836165).

The spelling of 51150431050 in words is "fifty-one billion, one hundred fifty million, four hundred thirty-one thousand, fifty".