49999961 has 4 divisors (see below), whose sum is σ = 54545424. Its totient is φ = 45454500.

The previous prime is 49999921. The next prime is 49999991. The reversal of 49999961 is 16999994.

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.

It is a cyclic number.

It is not a de Polignac number, because 49999961 - 2⁶ = 49999897 is a prime.

It is a super-2 number, since 2×49999961² = 4999992200003042, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49999897 and 49999906.

It is not an unprimeable number, because it can be changed into a prime (49999921) 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, 2272715 + ... + 2272736.

It is an arithmetic number, because the mean of its divisors is an integer number (13636356).

Almost surely, 2^49999961 is an apocalyptic number.

It is an amenable number.

49999961 is a deficient number, since it is larger than the sum of its proper divisors (4545463).

49999961 is a wasteful number, since it uses less digits than its factorization.

49999961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4545462.

The product of its digits is 1417176, while the sum is 56.

The square root of 49999961 is about 7071.0650541485. The cubic root of 49999961 is about 368.4030540792.

The spelling of 49999961 in words is "forty-nine million, nine hundred ninety-nine thousand, nine hundred sixty-one".