50619640 has 64 divisors (see below), whose sum is σ = 117612000. Its totient is φ = 19599360.

The previous prime is 50619637. The next prime is 50619641. The reversal of 50619640 is 4691605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50619641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209920 + ... + 210160.

Almost surely, 2^50619640 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 50619640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58806000).

50619640 is an abundant number, since it is smaller than the sum of its proper divisors (66992360).

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

50619640 is a wasteful number, since it uses less digits than its factorization.

50619640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400 (or 396 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 50619640 is about 7114.7480630027. The cubic root of 50619640 is about 369.9187549883.

The spelling of 50619640 in words is "fifty million, six hundred nineteen thousand, six hundred forty".