51850216354 has 4 divisors (see below), whose sum is σ = 77775324534. Its totient is φ = 25925108176.

The previous prime is 51850216333. The next prime is 51850216373. The reversal of 51850216354 is 45361205815.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 50960805025 + 889411329 = 225745^2 + 29823^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12962554087 + ... + 12962554090.

Almost surely, 2^51850216354 is an apocalyptic number.

51850216354 is a deficient number, since it is larger than the sum of its proper divisors (25925108180).

51850216354 is a wasteful number, since it uses less digits than its factorization.

51850216354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25925108179.

The product of its (nonzero) digits is 144000, while the sum is 40.

The spelling of 51850216354 in words is "fifty-one billion, eight hundred fifty million, two hundred sixteen thousand, three hundred fifty-four".