49358981 has 4 divisors (see below), whose sum is σ = 56410272. Its totient is φ = 42307692.

The previous prime is 49358971. The next prime is 49359047. The reversal of 49358981 is 18985394.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18985394 = 2 ⋅9492697.

It is not a de Polignac number, because 49358981 - 2⁶ = 49358917 is a prime.

It is a super-2 number, since 2×49358981² = 4872618010716722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49358921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3525635 + ... + 3525648.

It is an arithmetic number, because the mean of its divisors is an integer number (14102568).

Almost surely, 2^49358981 is an apocalyptic number.

It is an amenable number.

49358981 is a deficient number, since it is larger than the sum of its proper divisors (7051291).

49358981 is an equidigital number, since it uses as much as digits as its factorization.

49358981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7051290.

The product of its digits is 311040, while the sum is 47.

The square root of 49358981 is about 7025.5947079233. The cubic root of 49358981 is about 366.8220174585.

The spelling of 49358981 in words is "forty-nine million, three hundred fifty-eight thousand, nine hundred eighty-one".