49823561 has 2 divisors, whose sum is σ = 49823562. Its totient is φ = 49823560.

The previous prime is 49823539. The next prime is 49823591. The reversal of 49823561 is 16532894.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45981961 + 3841600 = 6781^2 + 1960^2 .

It is a cyclic number.

It is not a de Polignac number, because 49823561 - 2¹⁸ = 49561417 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49823591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24911780 + 24911781.

It is an arithmetic number, because the mean of its divisors is an integer number (24911781).

Almost surely, 2^49823561 is an apocalyptic number.

It is an amenable number.

49823561 is a deficient number, since it is larger than the sum of its proper divisors (1).

49823561 is an equidigital number, since it uses as much as digits as its factorization.

49823561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 38.

The square root of 49823561 is about 7058.5806646946. The cubic root of 49823561 is about 367.9693012553.

The spelling of 49823561 in words is "forty-nine million, eight hundred twenty-three thousand, five hundred sixty-one".