52970000 has 50 divisors (see below), whose sum is σ = 128269878. Its totient is φ = 21184000.

The previous prime is 52969933. The next prime is 52970003. The reversal of 52970000 is 7925.

It can be written as a sum of positive squares in 5 ways, for example, as 12418576 + 40551424 = 3524^2 + 6368^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is not an unprimeable number, because it can be changed into a prime (52970003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7352 + ... + 12648.

Almost surely, 2^52970000 is an apocalyptic number.

52970000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52970000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64134939).

52970000 is an abundant number, since it is smaller than the sum of its proper divisors (75299878).

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

52970000 is an equidigital number, since it uses as much as digits as its factorization.

52970000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5325 (or 5304 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 52970000 is about 7278.0491891715. The cubic root of 52970000 is about 375.5576887295.

Adding to 52970000 its reverse (7925), we get a palindrome (52977925).

The spelling of 52970000 in words is "fifty-two million, nine hundred seventy thousand".