50702085987221 has 2 divisors, whose sum is σ = 50702085987222. Its totient is φ = 50702085987220.

The previous prime is 50702085987197. The next prime is 50702085987233. The reversal of 50702085987221 is 12278958020705.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45310467003025 + 5391618984196 = 6731305^2 + 2321986^2 .

It is a cyclic number.

It is not a de Polignac number, because 50702085987221 - 2⁴² = 46304039476117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50702085987821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25351042993610 + 25351042993611.

It is an arithmetic number, because the mean of its divisors is an integer number (25351042993611).

Almost surely, 2^{50702085987221} is an apocalyptic number.

It is an amenable number.

50702085987221 is a deficient number, since it is larger than the sum of its proper divisors (1).

50702085987221 is an equidigital number, since it uses as much as digits as its factorization.

50702085987221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5644800, while the sum is 56.

The spelling of 50702085987221 in words is "fifty trillion, seven hundred two billion, eighty-five million, nine hundred eighty-seven thousand, two hundred twenty-one".