49957279 has 2 divisors, whose sum is σ = 49957280. Its totient is φ = 49957278.

The previous prime is 49957253. The next prime is 49957291. The reversal of 49957279 is 97275994.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49957279 - 2¹³ = 49949087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49957079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24978639 + 24978640.

It is an arithmetic number, because the mean of its divisors is an integer number (24978640).

Almost surely, 2^49957279 is an apocalyptic number.

49957279 is a deficient number, since it is larger than the sum of its proper divisors (1).

49957279 is an equidigital number, since it uses as much as digits as its factorization.

49957279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1428840, while the sum is 52.

The square root of 49957279 is about 7068.0463354452. The cubic root of 49957279 is about 368.2981962938.

The spelling of 49957279 in words is "forty-nine million, nine hundred fifty-seven thousand, two hundred seventy-nine".