50655840 has 48 divisors (see below), whose sum is σ = 159567408. Its totient is φ = 13508096.

The previous prime is 50655817. The next prime is 50655841. The reversal of 50655840 is 4855605.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×50655840² = 5132028252211200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50655841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52287 + ... + 53246.

It is an arithmetic number, because the mean of its divisors is an integer number (3324321).

Almost surely, 2^50655840 is an apocalyptic number.

It is an amenable number.

50655840 is an abundant number, since it is smaller than the sum of its proper divisors (108911568).

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

50655840 is a wasteful number, since it uses less digits than its factorization.

50655840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105551 (or 105543 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 50655840 is about 7117.2916197104. The cubic root of 50655840 is about 370.0069148939.

The spelling of 50655840 in words is "fifty million, six hundred fifty-five thousand, eight hundred forty".