51572036285 has 16 divisors (see below), whose sum is σ = 77157124992. Its totient is φ = 32148801600.

The previous prime is 51572036267. The next prime is 51572036293. The reversal of 51572036285 is 58263027515.

It is not a de Polignac number, because 51572036285 - 2¹² = 51572032189 is a prime.

It is a Duffinian number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 66976286 + ... + 66977055.

It is an arithmetic number, because the mean of its divisors is an integer number (4822320312).

Almost surely, 2^51572036285 is an apocalyptic number.

51572036285 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51572036285 is a deficient number, since it is larger than the sum of its proper divisors (25585088707).

51572036285 is a wasteful number, since it uses less digits than its factorization.

51572036285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133953364.

The product of its (nonzero) digits is 504000, while the sum is 44.

The spelling of 51572036285 in words is "fifty-one billion, five hundred seventy-two million, thirty-six thousand, two hundred eighty-five".