51252341200 has 60 divisors (see below), whose sum is σ = 130376928780. Its totient is φ = 19294996480.

The previous prime is 51252341197. The next prime is 51252341209. The reversal of 51252341200 is 214325215.

It can be written as a sum of positive squares in 6 ways, for example, as 2744921664 + 48507419536 = 52392^2 + 220244^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51252341209) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3761755 + ... + 3775354.

It is an arithmetic number, because the mean of its divisors is an integer number (2172948813).

Almost surely, 2^51252341200 is an apocalyptic number.

51252341200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51252341200 is an abundant number, since it is smaller than the sum of its proper divisors (79124587580).

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

51252341200 is a wasteful number, since it uses less digits than its factorization.

51252341200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7537144 (or 7537133 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 51252341200 its reverse (214325215), we get a palindrome (51466666415).

The spelling of 51252341200 in words is "fifty-one billion, two hundred fifty-two million, three hundred forty-one thousand, two hundred".