50755220 has 24 divisors (see below), whose sum is σ = 110262600. Its totient is φ = 19601792.

The previous prime is 50755219. The next prime is 50755223. The reversal of 50755220 is 2255705.

It can be written as a sum of positive squares in 4 ways, for example, as 18696976 + 32058244 = 4324^2 + 5662^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 50755220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50755223) 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, 43175 + ... + 44334.

It is an arithmetic number, because the mean of its divisors is an integer number (4594275).

Almost surely, 2^50755220 is an apocalyptic number.

It is an amenable number.

50755220 is an abundant number, since it is smaller than the sum of its proper divisors (59507380).

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

50755220 is a wasteful number, since it uses less digits than its factorization.

50755220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87547 (or 87545 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 26.

The square root of 50755220 is about 7124.2697871431. The cubic root of 50755220 is about 370.2487248977.

The spelling of 50755220 in words is "fifty million, seven hundred fifty-five thousand, two hundred twenty".