52516250 has 20 divisors (see below), whose sum is σ = 98438802. Its totient is φ = 21006000.

The previous prime is 52516229. The next prime is 52516259. The reversal of 52516250 is 5261525.

It can be written as a sum of positive squares in 5 ways, for example, as 2968729 + 49547521 = 1723^2 + 7039^2 .

It is not an unprimeable number, because it can be changed into a prime (52516259) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 19757 + ... + 22256.

Almost surely, 2^52516250 is an apocalyptic number.

52516250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

52516250 is a deficient number, since it is larger than the sum of its proper divisors (45922552).

52516250 is an equidigital number, since it uses as much as digits as its factorization.

52516250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42035 (or 42020 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 52516250 is about 7246.8096428704. The cubic root of 52516250 is about 374.4822484475.

Adding to 52516250 its reverse (5261525), we get a palindrome (57777775).

The spelling of 52516250 in words is "fifty-two million, five hundred sixteen thousand, two hundred fifty".