50551000 has 32 divisors (see below), whose sum is σ = 118291680. Its totient is φ = 20220000.

The previous prime is 50550977. The next prime is 50551037. The reversal of 50551000 is 15505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24276 + ... + 26275.

It is an arithmetic number, because the mean of its divisors is an integer number (3696615).

Almost surely, 2^50551000 is an apocalyptic number.

50551000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

50551000 is an abundant number, since it is smaller than the sum of its proper divisors (67740680).

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

50551000 is a wasteful number, since it uses less digits than its factorization.

50551000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50572 (or 50558 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 16.

The square root of 50551000 is about 7109.9226437423. The cubic root of 50551000 is about 369.7514766435.

Adding to 50551000 its reverse (15505), we get a palindrome (50566505).

The spelling of 50551000 in words is "fifty million, five hundred fifty-one thousand".