50420781248654 has 4 divisors (see below), whose sum is σ = 75631171872984. Its totient is φ = 25210390624326.

The previous prime is 50420781248581. The next prime is 50420781248737. The reversal of 50420781248654 is 45684218702405.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 50420781248654.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12605195312162 + ... + 12605195312165.

It is an arithmetic number, because the mean of its divisors is an integer number (18907792968246).

Almost surely, 2^{50420781248654} is an apocalyptic number.

50420781248654 is a deficient number, since it is larger than the sum of its proper divisors (25210390624330).

50420781248654 is a wasteful number, since it uses less digits than its factorization.

50420781248654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25210390624329.

The product of its (nonzero) digits is 17203200, while the sum is 56.

The spelling of 50420781248654 in words is "fifty trillion, four hundred twenty billion, seven hundred eighty-one million, two hundred forty-eight thousand, six hundred fifty-four".