52250000 has 140 divisors (see below), whose sum is σ = 145310640. Its totient is φ = 18000000.

The previous prime is 52249991. The next prime is 52250021. The reversal of 52250000 is 5225.

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 27 ways as a sum of consecutive naturals, for example, 2749991 + ... + 2750009.

Almost surely, 2^52250000 is an apocalyptic number.

52250000 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 52250000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72655320).

52250000 is an abundant number, since it is smaller than the sum of its proper divisors (93060640).

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

52250000 is an equidigital number, since it uses as much as digits as its factorization.

52250000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68 (or 37 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 14.

The square root of 52250000 is about 7228.4161474005. The cubic root of 52250000 is about 373.8483184852.

Adding to 52250000 its reverse (5225), we get a palindrome (52255225).

Multiplying 52250000 by its reverse (5225), we get a square (273006250000 = 522500²).

52250000 divided by its reverse (5225) gives a 4-th power (10000 = 10⁴).

It can be divided in two parts, 52 and 250000, that added together give a palindrome (250052).

The spelling of 52250000 in words is "fifty-two million, two hundred fifty thousand".