51325500655 has 16 divisors (see below), whose sum is σ = 72358189344. Its totient is φ = 34456279680.

The previous prime is 51325500647. The next prime is 51325500671. The reversal of 51325500655 is 55600552315.

It is not a de Polignac number, because 51325500655 - 2³ = 51325500647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35891244 + ... + 35892673.

It is an arithmetic number, because the mean of its divisors is an integer number (4522386834).

Almost surely, 2^51325500655 is an apocalyptic number.

51325500655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51325500655 is a deficient number, since it is larger than the sum of its proper divisors (21032688689).

51325500655 is a wasteful number, since it uses less digits than its factorization.

51325500655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71783946.

The product of its (nonzero) digits is 112500, while the sum is 37.

The spelling of 51325500655 in words is "fifty-one billion, three hundred twenty-five million, five hundred thousand, six hundred fifty-five".