50565550 has 36 divisors (see below), whose sum is σ = 109412640. Its totient is φ = 17335920.

The previous prime is 50565547. The next prime is 50565553. The reversal of 50565550 is 5556505.

It is an interprime number because it is at equal distance from previous prime (50565547) and next prime (50565553).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50565553) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7870 + ... + 12769.

It is an arithmetic number, because the mean of its divisors is an integer number (3039240).

Almost surely, 2^50565550 is an apocalyptic number.

50565550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

50565550 is an abundant number, since it is smaller than the sum of its proper divisors (58847090).

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

50565550 is a wasteful number, since it uses less digits than its factorization.

50565550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20665 (or 20653 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 31.

The square root of 50565550 is about 7110.9457880088. The cubic root of 50565550 is about 369.7869481996.

It can be divided in two parts, 50565 and 550, that added together give a palindrome (51115).

The spelling of 50565550 in words is "fifty million, five hundred sixty-five thousand, five hundred fifty".