49042321 has 2 divisors, whose sum is σ = 49042322. Its totient is φ = 49042320.

The previous prime is 49042309. The next prime is 49042337. The reversal of 49042321 is 12324094.

49042321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29550096 + 19492225 = 5436^2 + 4415^2 .

It is a cyclic number.

It is not a de Polignac number, because 49042321 - 2¹³ = 49034129 is a prime.

It is not a weakly prime, because it can be changed into another prime (49042351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24521160 + 24521161.

It is an arithmetic number, because the mean of its divisors is an integer number (24521161).

Almost surely, 2^49042321 is an apocalyptic number.

It is an amenable number.

49042321 is a deficient number, since it is larger than the sum of its proper divisors (1).

49042321 is an equidigital number, since it uses as much as digits as its factorization.

49042321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 49042321 is about 7003.0222761319. The cubic root of 49042321 is about 366.0358913512.

It can be divided in two parts, 4904 and 2321, that added together give a square (7225 = 85²).

The spelling of 49042321 in words is "forty-nine million, forty-two thousand, three hundred twenty-one".