49987211 has 4 divisors (see below), whose sum is σ = 52160592. Its totient is φ = 47813832.

The previous prime is 49987207. The next prime is 49987229. The reversal of 49987211 is 11278994.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11278994 = 2 ⋅5639497.

It is a cyclic number.

It is not a de Polignac number, because 49987211 - 2² = 49987207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49987411) 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 in 3 ways as a sum of consecutive naturals, for example, 1086656 + ... + 1086701.

It is an arithmetic number, because the mean of its divisors is an integer number (13040148).

Almost surely, 2^49987211 is an apocalyptic number.

49987211 is a deficient number, since it is larger than the sum of its proper divisors (2173381).

49987211 is a wasteful number, since it uses less digits than its factorization.

49987211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2173380.

The product of its digits is 36288, while the sum is 41.

The square root of 49987211 is about 7070.1634351689. The cubic root of 49987211 is about 368.3717371331.

The spelling of 49987211 in words is "forty-nine million, nine hundred eighty-seven thousand, two hundred eleven".