49664749 has 2 divisors, whose sum is σ = 49664750. Its totient is φ = 49664748.

The previous prime is 49664737. The next prime is 49664761. The reversal of 49664749 is 94746694.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (49664737) and next prime (49664761).

It can be written as a sum of positive squares in only one way, i.e., 27405225 + 22259524 = 5235^2 + 4718^2 .

It is a cyclic number.

It is not a de Polignac number, because 49664749 - 2⁵ = 49664717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49664779) 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, 24832374 + 24832375.

It is an arithmetic number, because the mean of its divisors is an integer number (24832375).

Almost surely, 2^49664749 is an apocalyptic number.

It is an amenable number.

49664749 is a deficient number, since it is larger than the sum of its proper divisors (1).

49664749 is an equidigital number, since it uses as much as digits as its factorization.

49664749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 49.

The square root of 49664749 is about 7047.3221155273. The cubic root of 49664749 is about 367.5779192147.

The spelling of 49664749 in words is "forty-nine million, six hundred sixty-four thousand, seven hundred forty-nine".