51255285049994 has 8 divisors (see below), whose sum is σ = 76883221030788. Its totient is φ = 25627544706400.

The previous prime is 51255285049961. The next prime is 51255285050029. The reversal of 51255285049994 is 49994058255215.

It can be written as a sum of positive squares in 2 ways, for example, as 46536341280025 + 4718943769969 = 6821755^2 + 2172313^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×51255285049994² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48252557 + ... + 49303344.

Almost surely, 2^{51255285049994} is an apocalyptic number.

51255285049994 is a deficient number, since it is larger than the sum of its proper divisors (25627935980794).

51255285049994 is a wasteful number, since it uses less digits than its factorization.

51255285049994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97818600.

The product of its (nonzero) digits is 233280000, while the sum is 68.

The spelling of 51255285049994 in words is "fifty-one trillion, two hundred fifty-five billion, two hundred eighty-five million, forty-nine thousand, nine hundred ninety-four".