52121000 has 32 divisors (see below), whose sum is σ = 121965480. Its totient is φ = 20848000.

The previous prime is 52120993. The next prime is 52121011. The reversal of 52121000 is 12125.

52121000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 21362884 + 30758116 = 4622^2 + 5546^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25061 + ... + 27060.

Almost surely, 2^52121000 is an apocalyptic number.

52121000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

52121000 is an abundant number, since it is smaller than the sum of its proper divisors (69844480).

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

52121000 is a wasteful number, since it uses less digits than its factorization.

52121000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52142 (or 52128 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 52121000 is about 7219.4875164377. The cubic root of 52121000 is about 373.5404002948.

Adding to 52121000 its reverse (12125), we get a palindrome (52133125).

The spelling of 52121000 in words is "fifty-two million, one hundred twenty-one thousand".