49994781 has 8 divisors (see below), whose sum is σ = 66744000. Its totient is φ = 33287712.

The previous prime is 49994759. The next prime is 49994783. The reversal of 49994781 is 18749994.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 49994781 - 2⁶ = 49994717 is a prime.

It is a super-2 number, since 2×49994781² = 4998956254475922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49994783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7656 + ... + 12593.

It is an arithmetic number, because the mean of its divisors is an integer number (8343000).

Almost surely, 2^49994781 is an apocalyptic number.

It is an amenable number.

49994781 is a deficient number, since it is larger than the sum of its proper divisors (16749219).

49994781 is a wasteful number, since it uses less digits than its factorization.

49994781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21075.

The product of its digits is 653184, while the sum is 51.

The square root of 49994781 is about 7070.6987632058. The cubic root of 49994781 is about 368.3903314444.

The spelling of 49994781 in words is "forty-nine million, nine hundred ninety-four thousand, seven hundred eighty-one".