52101250 has 20 divisors (see below), whose sum is σ = 97660926. Its totient is φ = 20840000.

The previous prime is 52101229. The next prime is 52101253. The reversal of 52101250 is 5210125.

It can be written as a sum of positive squares in 5 ways, for example, as 4532641 + 47568609 = 2129^2 + 6897^2 .

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52101253) 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, 19591 + ... + 22090.

Almost surely, 2^52101250 is an apocalyptic number.

52101250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

52101250 is a deficient number, since it is larger than the sum of its proper divisors (45559676).

52101250 is an equidigital number, since it uses as much as digits as its factorization.

52101250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41703 (or 41688 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 52101250 is about 7218.1195612154. The cubic root of 52101250 is about 373.4932129491.

Adding to 52101250 its reverse (5210125), we get a palindrome (57311375).

The spelling of 52101250 in words is "fifty-two million, one hundred one thousand, two hundred fifty".