50647680 has 160 divisors (see below), whose sum is σ = 181057140. Its totient is φ = 13492224.

The previous prime is 50647657. The next prime is 50647691. The reversal of 50647680 is 8674605.

It is a happy number.

50647680 is a `hidden beast` number, since 5 + 0 + 647 + 6 + 8 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 48776256 + 1871424 = 6984^2 + 1368^2 .

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 51352 + ... + 52328.

Almost surely, 2^50647680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50647680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90528570).

50647680 is an abundant number, since it is smaller than the sum of its proper divisors (130409460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50647680 is an equidigital number, since it uses as much as digits as its factorization.

50647680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008 (or 987 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 50647680 is about 7116.7183448553. The cubic root of 50647680 is about 369.9870460524.

The spelling of 50647680 in words is "fifty million, six hundred forty-seven thousand, six hundred eighty".