50149779 has 8 divisors (see below), whose sum is σ = 70799760. Its totient is φ = 31466496.

The previous prime is 50149777. The next prime is 50149817. The reversal of 50149779 is 97794105.

It is a happy number.

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

It is not a de Polignac number, because 50149779 - 2¹ = 50149777 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50149779.

It is not an unprimeable number, because it can be changed into a prime (50149777) 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, 491614 + ... + 491715.

It is an arithmetic number, because the mean of its divisors is an integer number (8849970).

Almost surely, 2^50149779 is an apocalyptic number.

50149779 is a deficient number, since it is larger than the sum of its proper divisors (20649981).

50149779 is a wasteful number, since it uses less digits than its factorization.

50149779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983349.

The product of its (nonzero) digits is 79380, while the sum is 42.

The square root of 50149779 is about 7081.6508668530. The cubic root of 50149779 is about 368.7706435250.

The spelling of 50149779 in words is "fifty million, one hundred forty-nine thousand, seven hundred seventy-nine".