49027681 has 4 divisors (see below), whose sum is σ = 49311252. Its totient is φ = 48744112.

The previous prime is 49027679. The next prime is 49027717. The reversal of 49027681 is 18672094.

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 27720225 + 21307456 = 5265^2 + 4616^2 .

It is a cyclic number.

It is not a de Polignac number, because 49027681 - 2¹ = 49027679 is a prime.

It is a super-2 number, since 2×49027681² = 4807427008475522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49027681.

It is not an unprimeable number, because it can be changed into a prime (49027631) 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, 141526 + ... + 141871.

It is an arithmetic number, because the mean of its divisors is an integer number (12327813).

Almost surely, 2^49027681 is an apocalyptic number.

It is an amenable number.

49027681 is a deficient number, since it is larger than the sum of its proper divisors (283571).

49027681 is a wasteful number, since it uses less digits than its factorization.

49027681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283570.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 49027681 is about 7001.9769351234. The cubic root of 49027681 is about 365.9994649977. Note that the first 3 decimals are identical.

The spelling of 49027681 in words is "forty-nine million, twenty-seven thousand, six hundred eighty-one".