48992681 has 4 divisors (see below), whose sum is σ = 49183572. Its totient is φ = 48801792.

The previous prime is 48992653. The next prime is 48992683. The reversal of 48992681 is 18629984.

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 39438400 + 9554281 = 6280^2 + 3091^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48992681 is a prime.

It is a super-2 number, since 2×48992681² = 4800565583135522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48992683) 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, 95060 + ... + 95573.

It is an arithmetic number, because the mean of its divisors is an integer number (12295893).

Almost surely, 2^48992681 is an apocalyptic number.

It is an amenable number.

48992681 is a deficient number, since it is larger than the sum of its proper divisors (190891).

48992681 is a wasteful number, since it uses less digits than its factorization.

48992681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190890.

The product of its digits is 248832, while the sum is 47.

The square root of 48992681 is about 6999.4771947625. The cubic root of 48992681 is about 365.9123507356.

The spelling of 48992681 in words is "forty-eight million, nine hundred ninety-two thousand, six hundred eighty-one".