51755732440225 has 24 divisors (see below), whose sum is σ = 74129707903968. Its totient is φ = 35426383699200.

The previous prime is 51755732440219. The next prime is 51755732440229. The reversal of 51755732440225 is 52204423755715.

It is not a de Polignac number, because 51755732440225 - 2⁵ = 51755732440193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51755732440229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5535367779 + ... + 5535377128.

It is an arithmetic number, because the mean of its divisors is an integer number (3088737829332).

Almost surely, 2^{51755732440225} is an apocalyptic number.

51755732440225 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51755732440225 is a deficient number, since it is larger than the sum of its proper divisors (22373975463743).

51755732440225 is a wasteful number, since it uses less digits than its factorization.

51755732440225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11070744945 (or 11070744940 counting only the distinct ones).

The product of its (nonzero) digits is 11760000, while the sum is 52.

The spelling of 51755732440225 in words is "fifty-one trillion, seven hundred fifty-five billion, seven hundred thirty-two million, four hundred forty thousand, two hundred twenty-five".