49781459 has 16 divisors (see below), whose sum is σ = 61501440. Its totient is φ = 39238560.

The previous prime is 49781449. The next prime is 49781471. The reversal of 49781459 is 95418794.

It is a cyclic number.

It is not a de Polignac number, because 49781459 - 2⁸ = 49781203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49781419) 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, 27422 + ... + 29180.

It is an arithmetic number, because the mean of its divisors is an integer number (3843840).

Almost surely, 2^49781459 is an apocalyptic number.

49781459 is a deficient number, since it is larger than the sum of its proper divisors (11719981).

49781459 is a wasteful number, since it uses less digits than its factorization.

49781459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090.

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

The square root of 49781459 is about 7055.5977067857. The cubic root of 49781459 is about 367.8656246746.

The spelling of 49781459 in words is "forty-nine million, seven hundred eighty-one thousand, four hundred fifty-nine".