51105131450 has 24 divisors (see below), whose sum is σ = 95171119968. Its totient is φ = 20417197680.

The previous prime is 51105131449. The next prime is 51105131489. The reversal of 51105131450 is 5413150115.

It is a super-2 number, since 2×51105131450² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 579812 + ... + 662111.

It is an arithmetic number, because the mean of its divisors is an integer number (3965463332).

Almost surely, 2^51105131450 is an apocalyptic number.

51105131450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51105131450 is a deficient number, since it is larger than the sum of its proper divisors (44065988518).

51105131450 is a wasteful number, since it uses less digits than its factorization.

51105131450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242758 (or 1242753 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 26.

Adding to 51105131450 its reverse (5413150115), we get a palindrome (56518281565).

It can be divided in two parts, 51 and 105131450, that added together give a palindrome (105131501).

The spelling of 51105131450 in words is "fifty-one billion, one hundred five million, one hundred thirty-one thousand, four hundred fifty".