51220004150 has 48 divisors (see below), whose sum is σ = 108897863424. Its totient is φ = 17558117280.

The previous prime is 51220004111. The next prime is 51220004177. The reversal of 51220004150 is 5140002215.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3156959 + ... + 3173141.

It is an arithmetic number, because the mean of its divisors is an integer number (2268705488).

Almost surely, 2^51220004150 is an apocalyptic number.

51220004150 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51220004150 is an abundant number, since it is smaller than the sum of its proper divisors (57677859274).

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

51220004150 is a wasteful number, since it uses less digits than its factorization.

51220004150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25245 (or 25240 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

Adding to 51220004150 its reverse (5140002215), we get a palindrome (56360006365).

The spelling of 51220004150 in words is "fifty-one billion, two hundred twenty million, four thousand, one hundred fifty".