49851261 has 16 divisors (see below), whose sum is σ = 76401600. Its totient is φ = 32087664.

The previous prime is 49851253. The next prime is 49851287. The reversal of 49851261 is 16215894.

It is not a de Polignac number, because 49851261 - 2³ = 49851253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49851251) 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 15 ways as a sum of consecutive naturals, for example, 31051 + ... + 32616.

It is an arithmetic number, because the mean of its divisors is an integer number (4775100).

Almost surely, 2^49851261 is an apocalyptic number.

It is an amenable number.

49851261 is a deficient number, since it is larger than the sum of its proper divisors (26550339).

49851261 is a wasteful number, since it uses less digits than its factorization.

49851261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63705 (or 63699 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 49851261 is about 7060.5425428929. The cubic root of 49851261 is about 368.0374809217.

The spelling of 49851261 in words is "forty-nine million, eight hundred fifty-one thousand, two hundred sixty-one".