50879640 has 192 divisors, whose sum is σ = 188373600. Its totient is φ = 10924032.

The previous prime is 50879627. The next prime is 50879641. The reversal of 50879640 is 4697805.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50879641) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 99706 + ... + 100214.

Almost surely, 2^50879640 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 50879640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94186800).

50879640 is an abundant number, since it is smaller than the sum of its proper divisors (137493960).

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

50879640 is a wasteful number, since it uses less digits than its factorization.

50879640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554 (or 543 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 50879640 is about 7132.9965652592. The cubic root of 50879640 is about 370.5510173226.

The spelling of 50879640 in words is "fifty million, eight hundred seventy-nine thousand, six hundred forty".