50998647 has 16 divisors (see below), whose sum is σ = 77852160. Its totient is φ = 29089632.

The previous prime is 50998631. The next prime is 50998663. The reversal of 50998647 is 74689905.

It is an interprime number because it is at equal distance from previous prime (50998631) and next prime (50998663).

It is not a de Polignac number, because 50998647 - 2⁴ = 50998631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50998596 and 50998605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50948647) 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, 11854 + ... + 15572.

It is an arithmetic number, because the mean of its divisors is an integer number (4865760).

Almost surely, 2^50998647 is an apocalyptic number.

50998647 is a deficient number, since it is larger than the sum of its proper divisors (26853513).

50998647 is a wasteful number, since it uses less digits than its factorization.

50998647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4382.

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

The square root of 50998647 is about 7141.3336989669. Note that the first 3 decimals coincide. The cubic root of 50998647 is about 370.8396974823.

The spelling of 50998647 in words is "fifty million, nine hundred ninety-eight thousand, six hundred forty-seven".