51434747554 has 8 divisors (see below), whose sum is σ = 77154121260. Its totient is φ = 25716707136.

The previous prime is 51434747531. The next prime is 51434747621. The reversal of 51434747554 is 45574743415.

It can be written as a sum of positive squares in 2 ways, for example, as 48728355025 + 2706392529 = 220745^2 + 52023^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 51434747498 and 51434747507.

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, 230539 + ... + 394990.

Almost surely, 2^51434747554 is an apocalyptic number.

51434747554 is a deficient number, since it is larger than the sum of its proper divisors (25719373706).

51434747554 is a wasteful number, since it uses less digits than its factorization.

51434747554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666644.

The product of its digits is 4704000, while the sum is 49.

The spelling of 51434747554 in words is "fifty-one billion, four hundred thirty-four million, seven hundred forty-seven thousand, five hundred fifty-four".