50668739 has 4 divisors (see below), whose sum is σ = 55275000. Its totient is φ = 46062480.

The previous prime is 50668729. The next prime is 50668777. The reversal of 50668739 is 93786605.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50668739 is a prime.

It is a super-2 number, since 2×50668739² = 5134642223700242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 50668739.

It is not an unprimeable number, because it can be changed into a prime (50668729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2303114 + ... + 2303135.

It is an arithmetic number, because the mean of its divisors is an integer number (13818750).

Almost surely, 2^50668739 is an apocalyptic number.

50668739 is a deficient number, since it is larger than the sum of its proper divisors (4606261).

50668739 is a wasteful number, since it uses less digits than its factorization.

50668739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4606260.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 50668739 is about 7118.1977353822. The cubic root of 50668739 is about 370.0383184079.

The spelling of 50668739 in words is "fifty million, six hundred sixty-eight thousand, seven hundred thirty-nine".