50000014999981 has 2 divisors, whose sum is σ = 50000014999982. Its totient is φ = 50000014999980.

The previous prime is 50000014999967. The next prime is 50000015000011. The reversal of 50000014999981 is 18999941000005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48060471344356 + 1939543655625 = 6932566^2 + 1392675^2 .

It is a cyclic number.

It is not a de Polignac number, because 50000014999981 - 2⁴³ = 41203921977773 is a prime.

It is a super-2 number, since 2×50000014999981² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50000014999481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25000007499990 + 25000007499991.

It is an arithmetic number, because the mean of its divisors is an integer number (25000007499991).

Almost surely, 2^{50000014999981} is an apocalyptic number.

It is an amenable number.

50000014999981 is a deficient number, since it is larger than the sum of its proper divisors (1).

50000014999981 is an equidigital number, since it uses as much as digits as its factorization.

50000014999981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1049760, while the sum is 55.

Adding to 50000014999981 its reverse (18999941000005), we get a palindrome (68999955999986).

The spelling of 50000014999981 in words is "fifty trillion, fourteen million, nine hundred ninety-nine thousand, nine hundred eighty-one".