51387500088 has 64 divisors (see below), whose sum is σ = 142791264000. Its totient is φ = 17123381856.

The previous prime is 51387500077. The next prime is 51387500093. The reversal of 51387500088 is 88000578315.

It is a happy number.

51387500088 is a `hidden beast` number, since 5 + 138 + 7 + 500 + 0 + 8 + 8 = 666.

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, 626431 + ... + 703697.

It is an arithmetic number, because the mean of its divisors is an integer number (2231113500).

Almost surely, 2^51387500088 is an apocalyptic number.

It is an amenable number.

51387500088 is an abundant number, since it is smaller than the sum of its proper divisors (91403763912).

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

51387500088 is a wasteful number, since it uses less digits than its factorization.

51387500088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80361 (or 80351 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 45.

The spelling of 51387500088 in words is "fifty-one billion, three hundred eighty-seven million, five hundred thousand, eighty-eight".