49975391 has 2 divisors, whose sum is σ = 49975392. Its totient is φ = 49975390.

The previous prime is 49975337. The next prime is 49975397. The reversal of 49975391 is 19357994.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49975391 - 2⁶ = 49975327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49975397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24987695 + 24987696.

It is an arithmetic number, because the mean of its divisors is an integer number (24987696).

Almost surely, 2^49975391 is an apocalyptic number.

49975391 is a deficient number, since it is larger than the sum of its proper divisors (1).

49975391 is an equidigital number, since it uses as much as digits as its factorization.

49975391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 306180, while the sum is 47.

The square root of 49975391 is about 7069.3274786220. The cubic root of 49975391 is about 368.3426997247.

The spelling of 49975391 in words is "forty-nine million, nine hundred seventy-five thousand, three hundred ninety-one".