50725440 has 280 divisors, whose sum is σ = 191780160. Its totient is φ = 12690432.

The previous prime is 50725429. The next prime is 50725463. The reversal of 50725440 is 4452705.

50725440 is a `hidden beast` number, since 50 + 72 + 544 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 492429 + ... + 492531.

Almost surely, 2^50725440 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 50725440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95890080).

50725440 is an abundant number, since it is smaller than the sum of its proper divisors (141054720).

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

50725440 is a wasteful number, since it uses less digits than its factorization.

50725440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 50725440 is about 7122.1794417159. The cubic root of 50725440 is about 370.1762977714.

The spelling of 50725440 in words is "fifty million, seven hundred twenty-five thousand, four hundred forty".