49964150221 has 2 divisors, whose sum is σ = 49964150222. Its totient is φ = 49964150220.

The previous prime is 49964150209. The next prime is 49964150231. The reversal of 49964150221 is 12205146994.

49964150221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40630464900 + 9333685321 = 201570^2 + 96611^2 .

It is a cyclic number.

It is not a de Polignac number, because 49964150221 - 2⁵ = 49964150189 is a prime.

It is a super-3 number, since 3×49964150221³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49964150231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24982075110 + 24982075111.

It is an arithmetic number, because the mean of its divisors is an integer number (24982075111).

Almost surely, 2^49964150221 is an apocalyptic number.

It is an amenable number.

49964150221 is a deficient number, since it is larger than the sum of its proper divisors (1).

49964150221 is an equidigital number, since it uses as much as digits as its factorization.

49964150221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 49964150221 in words is "forty-nine billion, nine hundred sixty-four million, one hundred fifty thousand, two hundred twenty-one".