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49753078021 is a prime number
BaseRepresentation
bin101110010101100000…
…111011100100000101
311202102101012020100101
4232111200323210011
51303343241444041
634504541044101
73410633120413
oct562540734405
9152371166311
1049753078021
111a1113519a9
129786256631
1348cb86734a
14259da162b3
151462d6cb31
hexb9583b905

49753078021 has 2 divisors, whose sum is σ = 49753078022. Its totient is φ = 49753078020.

The previous prime is 49753077917. The next prime is 49753078043. The reversal of 49753078021 is 12087035794.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49678168996 + 74909025 = 222886^2 + 8655^2 .

It is a cyclic number.

It is not a de Polignac number, because 49753078021 - 213 = 49753069829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49753072021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24876539010 + 24876539011.

It is an arithmetic number, because the mean of its divisors is an integer number (24876539011).

Almost surely, 249753078021 is an apocalyptic number.

It is an amenable number.

49753078021 is a deficient number, since it is larger than the sum of its proper divisors (1).

49753078021 is an equidigital number, since it uses as much as digits as its factorization.

49753078021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 49753078021 in words is "forty-nine billion, seven hundred fifty-three million, seventy-eight thousand, twenty-one".