49945187 has 2 divisors, whose sum is σ = 49945188. Its totient is φ = 49945186.

The previous prime is 49945171. The next prime is 49945223. The reversal of 49945187 is 78154994.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49945187 - 2⁴ = 49945171 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49945387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24972593 + 24972594.

It is an arithmetic number, because the mean of its divisors is an integer number (24972594).

Almost surely, 2^49945187 is an apocalyptic number.

49945187 is a deficient number, since it is larger than the sum of its proper divisors (1).

49945187 is an equidigital number, since it uses as much as digits as its factorization.

49945187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 47.

The square root of 49945187 is about 7067.1908846443. The cubic root of 49945187 is about 368.2684787615.

The spelling of 49945187 in words is "forty-nine million, nine hundred forty-five thousand, one hundred eighty-seven".