49998061 has 4 divisors (see below), whose sum is σ = 50014300. Its totient is φ = 49981824.

The previous prime is 49998043. The next prime is 49998103. The reversal of 49998061 is 16089994.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16089994 = 2 ⋅8044997.

It can be written as a sum of positive squares in 2 ways, for example, as 42653961 + 7344100 = 6531^2 + 2710^2 .

It is a cyclic number.

It is not a de Polignac number, because 49998061 - 2⁵ = 49998029 is a prime.

It is a super-2 number, since 2×49998061² = 4999612207519442, 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 (49998031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1926 + ... + 10183.

It is an arithmetic number, because the mean of its divisors is an integer number (12503575).

Almost surely, 2^49998061 is an apocalyptic number.

It is an amenable number.

49998061 is a deficient number, since it is larger than the sum of its proper divisors (16239).

49998061 is a wasteful number, since it uses less digits than its factorization.

49998061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16238.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 49998061 is about 7070.9307025313. The cubic root of 49998061 is about 368.3983875778.

The spelling of 49998061 in words is "forty-nine million, nine hundred ninety-eight thousand, sixty-one".