50417640 has 448 divisors, whose sum is σ = 220348800. Its totient is φ = 10077696.

The previous prime is 50417639. The next prime is 50417641. The reversal of 50417640 is 4671405.

50417640 is a `hidden beast` number, since 5 + 0 + 4 + 17 + 640 = 666.

It is an interprime number because it is at equal distance from previous prime (50417639) and next prime (50417641).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50417641) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 2653551 + ... + 2653569.

It is an arithmetic number, because the mean of its divisors is an integer number (491850).

Almost surely, 2^50417640 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 50417640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110174400).

50417640 is an abundant number, since it is smaller than the sum of its proper divisors (169931160).

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

50417640 is a wasteful number, since it uses less digits than its factorization.

50417640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68 (or 49 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 50417640 is about 7100.5380077850. The cubic root of 50417640 is about 369.4260397403.

The spelling of 50417640 in words is "fifty million, four hundred seventeen thousand, six hundred forty".