49981049 has 4 divisors (see below), whose sum is σ = 50161764. Its totient is φ = 49800336.

The previous prime is 49980991. The next prime is 49981079. The reversal of 49981049 is 94018994.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94018994 = 2 ⋅47009497.

It can be written as a sum of positive squares in 2 ways, for example, as 15840400 + 34140649 = 3980^2 + 5843^2 .

It is a cyclic number.

It is not a de Polignac number, because 49981049 - 2²⁰ = 48932473 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49981079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89942 + ... + 90495.

It is an arithmetic number, because the mean of its divisors is an integer number (12540441).

Almost surely, 2^49981049 is an apocalyptic number.

It is an amenable number.

49981049 is a deficient number, since it is larger than the sum of its proper divisors (180715).

49981049 is a wasteful number, since it uses less digits than its factorization.

49981049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180714.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 49981049 is about 7069.7276468051. The cubic root of 49981049 is about 368.3565999285.

The spelling of 49981049 in words is "forty-nine million, nine hundred eighty-one thousand, forty-nine".