52000000 has 126 divisors (see below), whose sum is σ = 139724774. Its totient is φ = 19200000.

The previous prime is 51999971. The next prime is 52000007. The reversal of 52000000 is 25.

It can be written as a sum of positive squares in 7 ways, for example, as 49336576 + 2663424 = 7024^2 + 1632^2 .

It is a sliding number, since 52000000 = 2000000 + 50000000 and 1/2000000 + 1/50000000 = 0.00000052000000.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52000007) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 3999994 + ... + 4000006.

Almost surely, 2^52000000 is an apocalyptic number.

52000000 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 52000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69862387).

52000000 is an abundant number, since it is smaller than the sum of its proper divisors (87724774).

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

52000000 is an frugal number, since it uses more digits than its factorization.

52000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59 (or 20 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 7.

The square root of 52000000 is about 7211.1025509280. The cubic root of 52000000 is about 373.2511156817.

Adding to 52000000 its reverse (25), we get a palindrome (52000025).

It can be divided in two parts, 5 and 2000000, that multiplied together give a 7-th power (10000000 = 10⁷).

The spelling of 52000000 in words is "fifty-two million", and thus it is an aban number, an eban number, and an uban number.