49968621 has 12 divisors (see below), whose sum is σ = 74505600. Its totient is φ = 32237640.

The previous prime is 49968619. The next prime is 49968629. The reversal of 49968621 is 12686994.

It is a happy number.

It is not a de Polignac number, because 49968621 - 2¹ = 49968619 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49968629) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89271 + ... + 89828.

It is an arithmetic number, because the mean of its divisors is an integer number (6208800).

Almost surely, 2^49968621 is an apocalyptic number.

It is an amenable number.

49968621 is a deficient number, since it is larger than the sum of its proper divisors (24536979).

49968621 is a wasteful number, since it uses less digits than its factorization.

49968621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179136 (or 179133 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 49968621 is about 7068.8486332641. The cubic root of 49968621 is about 368.3260662535.

The spelling of 49968621 in words is "forty-nine million, nine hundred sixty-eight thousand, six hundred twenty-one".