49998749 has 2 divisors, whose sum is σ = 49998750. Its totient is φ = 49998748.

The previous prime is 49998743. The next prime is 49998763. The reversal of 49998749 is 94789994.

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., 39062500 + 10936249 = 6250^2 + 3307^2 .

It is a cyclic number.

It is not a de Polignac number, because 49998749 - 2⁸ = 49998493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49998743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24999374 + 24999375.

It is an arithmetic number, because the mean of its divisors is an integer number (24999375).

Almost surely, 2^49998749 is an apocalyptic number.

It is an amenable number.

49998749 is a deficient number, since it is larger than the sum of its proper divisors (1).

49998749 is an equidigital number, since it uses as much as digits as its factorization.

49998749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5878656, while the sum is 59.

The square root of 49998749 is about 7070.9793522538. The cubic root of 49998749 is about 368.4000773561.

The spelling of 49998749 in words is "forty-nine million, nine hundred ninety-eight thousand, seven hundred forty-nine".