50986749 has 16 divisors (see below), whose sum is σ = 74366784. Its totient is φ = 30816000.

The previous prime is 50986717. The next prime is 50986781. The reversal of 50986749 is 94768905.

It is an interprime number because it is at equal distance from previous prime (50986717) and next prime (50986781).

It is not a de Polignac number, because 50986749 - 2⁵ = 50986717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50986698 and 50986707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50986049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11307 + ... + 15159.

It is an arithmetic number, because the mean of its divisors is an integer number (4647924).

Almost surely, 2^50986749 is an apocalyptic number.

It is an amenable number.

50986749 is a deficient number, since it is larger than the sum of its proper divisors (23380035).

50986749 is a wasteful number, since it uses less digits than its factorization.

50986749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4268.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 50986749 is about 7140.5006127022. The cubic root of 50986749 is about 370.8108562342.

The spelling of 50986749 in words is "fifty million, nine hundred eighty-six thousand, seven hundred forty-nine".