50455638 has 12 divisors (see below), whose sum is σ = 109320588. Its totient is φ = 16818540.

The previous prime is 50455633. The next prime is 50455649. The reversal of 50455638 is 83655405.

50455638 is a `hidden beast` number, since 50 + 45 + 563 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50455633) 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 5 ways as a sum of consecutive naturals, for example, 1401528 + ... + 1401563.

It is an arithmetic number, because the mean of its divisors is an integer number (9110049).

Almost surely, 2^50455638 is an apocalyptic number.

50455638 is an abundant number, since it is smaller than the sum of its proper divisors (58864950).

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

50455638 is a wasteful number, since it uses less digits than its factorization.

50455638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803099 (or 2803096 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 50455638 is about 7103.2132165661. The cubic root of 50455638 is about 369.5188242342.

The spelling of 50455638 in words is "fifty million, four hundred fifty-five thousand, six hundred thirty-eight".