50055550 has 24 divisors (see below), whose sum is σ = 93634632. Its totient is φ = 19908000.

The previous prime is 50055539. The next prime is 50055559. The reversal of 50055550 is 5555005.

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 (50055559) 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, 6285 + ... + 11815.

It is an arithmetic number, because the mean of its divisors is an integer number (3901443).

Almost surely, 2^50055550 is an apocalyptic number.

50055550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

50055550 is a deficient number, since it is larger than the sum of its proper divisors (43579082).

50055550 is a wasteful number, since it uses less digits than its factorization.

50055550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5724 (or 5719 counting only the distinct ones).

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

The square root of 50055550 is about 7074.9946996447. The cubic root of 50055550 is about 368.5395313364.

It can be divided in two parts, 50055 and 550, that added together give a palindrome (50605).

The spelling of 50055550 in words is "fifty million, fifty-five thousand, five hundred fifty".