51515255330 has 256 divisors, whose sum is σ = 125873160192. Its totient is φ = 14702688000.

The previous prime is 51515255291. The next prime is 51515255357. The reversal of 51515255330 is 3355251515.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 56547575 + ... + 56548485.

It is an arithmetic number, because the mean of its divisors is an integer number (491692032).

Almost surely, 2^51515255330 is an apocalyptic number.

51515255330 is an abundant number, since it is smaller than the sum of its proper divisors (74357904862).

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

51515255330 is a wasteful number, since it uses less digits than its factorization.

51515255330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093.

The product of its (nonzero) digits is 56250, while the sum is 35.

The spelling of 51515255330 in words is "fifty-one billion, five hundred fifteen million, two hundred fifty-five thousand, three hundred thirty".