50433021554 has 4 divisors (see below), whose sum is σ = 75649532334. Its totient is φ = 25216510776.

The previous prime is 50433021521. The next prime is 50433021589. The reversal of 50433021554 is 45512033405.

It is a happy number.

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., 41137169329 + 9295852225 = 202823^2 + 96415^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 50433021554.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12608255387 + ... + 12608255390.

Almost surely, 2^50433021554 is an apocalyptic number.

50433021554 is a deficient number, since it is larger than the sum of its proper divisors (25216510780).

50433021554 is a wasteful number, since it uses less digits than its factorization.

50433021554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25216510779.

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 50433021554 its reverse (45512033405), we get a palindrome (95945054959).

The spelling of 50433021554 in words is "fifty billion, four hundred thirty-three million, twenty-one thousand, five hundred fifty-four".