50447749 has 8 divisors (see below), whose sum is σ = 55343520. Its totient is φ = 45603600.

The previous prime is 50447743. The next prime is 50447759. The reversal of 50447749 is 94774405.

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

It is a cyclic number.

It is not a de Polignac number, because 50447749 - 2¹⁵ = 50414981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50447743) 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, 10842 + ... + 14779.

It is an arithmetic number, because the mean of its divisors is an integer number (6917940).

Almost surely, 2^50447749 is an apocalyptic number.

It is an amenable number.

50447749 is a deficient number, since it is larger than the sum of its proper divisors (4895771).

50447749 is a wasteful number, since it uses less digits than its factorization.

50447749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25811.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 50447749 is about 7102.6578827929. The cubic root of 50447749 is about 369.4995645038.

The spelling of 50447749 in words is "fifty million, four hundred forty-seven thousand, seven hundred forty-nine".