50505550 has 24 divisors (see below), whose sum is σ = 94531896. Its totient is φ = 20075040.

The previous prime is 50505547. The next prime is 50505551. The reversal of 50505550 is 5550505.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50505551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5052 + ... + 11248.

It is an arithmetic number, because the mean of its divisors is an integer number (3938829).

Almost surely, 2^50505550 is an apocalyptic number.

50505550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

50505550 is a deficient number, since it is larger than the sum of its proper divisors (44026346).

50505550 is a wasteful number, since it uses less digits than its factorization.

50505550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6372 (or 6367 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 25.

The square root of 50505550 is about 7106.7256876849. The cubic root of 50505550 is about 369.6406298840.

The spelling of 50505550 in words is "fifty million, five hundred five thousand, five hundred fifty".