49292981 has 4 divisors (see below), whose sum is σ = 49471212. Its totient is φ = 49114752.

The previous prime is 49292977. The next prime is 49292987. The reversal of 49292981 is 18929294.

49292981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18929294 = 2 ⋅9464647.

It can be written as a sum of positive squares in 2 ways, for example, as 10666756 + 38626225 = 3266^2 + 6215^2 .

It is a cyclic number.

It is not a de Polignac number, because 49292981 - 2² = 49292977 is a prime.

It is a super-2 number, since 2×49292981² = 4859595951732722, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49292987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88700 + ... + 89253.

It is an arithmetic number, because the mean of its divisors is an integer number (12367803).

Almost surely, 2^49292981 is an apocalyptic number.

It is an amenable number.

49292981 is a deficient number, since it is larger than the sum of its proper divisors (178231).

49292981 is a wasteful number, since it uses less digits than its factorization.

49292981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178230.

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

The square root of 49292981 is about 7020.8960254372. The cubic root of 49292981 is about 366.6584467395.

The spelling of 49292981 in words is "forty-nine million, two hundred ninety-two thousand, nine hundred eighty-one".