49753861 has 2 divisors, whose sum is σ = 49753862. Its totient is φ = 49753860.

The previous prime is 49753859. The next prime is 49753867. The reversal of 49753861 is 16835794.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27720225 + 22033636 = 5265^2 + 4694^2 .

It is a cyclic number.

It is not a de Polignac number, because 49753861 - 2¹ = 49753859 is a prime.

Together with 49753859, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49753867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24876930 + 24876931.

It is an arithmetic number, because the mean of its divisors is an integer number (24876931).

Almost surely, 2^49753861 is an apocalyptic number.

It is an amenable number.

49753861 is a deficient number, since it is larger than the sum of its proper divisors (1).

49753861 is an equidigital number, since it uses as much as digits as its factorization.

49753861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 43.

The square root of 49753861 is about 7053.6416835561. The cubic root of 49753861 is about 367.7976326123.

It can be divided in two parts, 4975 and 3861, that added together give a square (8836 = 94²).

The spelling of 49753861 in words is "forty-nine million, seven hundred fifty-three thousand, eight hundred sixty-one".