48991049 has 4 divisors (see below), whose sum is σ = 49117380. Its totient is φ = 48864720.

The previous prime is 48991043. The next prime is 48991057. The reversal of 48991049 is 94019984.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33269824 + 15721225 = 5768^2 + 3965^2 .

It is a cyclic number.

It is not a de Polignac number, because 48991049 - 2²⁰ = 47942473 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (48991043) 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, 62582 + ... + 63359.

It is an arithmetic number, because the mean of its divisors is an integer number (12279345).

Almost surely, 2^48991049 is an apocalyptic number.

It is an amenable number.

48991049 is a deficient number, since it is larger than the sum of its proper divisors (126331).

48991049 is a wasteful number, since it uses less digits than its factorization.

48991049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126330.

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

The square root of 48991049 is about 6999.3606136561. The cubic root of 48991049 is about 365.9082877097.

The spelling of 48991049 in words is "forty-eight million, nine hundred ninety-one thousand, forty-nine".