52531250 has 42 divisors (see below), whose sum is σ = 100955739. Its totient is φ = 20500000.

The previous prime is 52531247. The next prime is 52531253. The reversal of 52531250 is 5213525.

It is an interprime number because it is at equal distance from previous prime (52531247) and next prime (52531253).

It can be written as a sum of positive squares in 11 ways, for example, as 50367409 + 2163841 = 7097^2 + 1471^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=5125.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52531253) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 1281230 + ... + 1281270.

Almost surely, 2^52531250 is an apocalyptic number.

52531250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

52531250 is a deficient number, since it is larger than the sum of its proper divisors (48424489).

52531250 is an frugal number, since it uses more digits than its factorization.

52531250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 48 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 52531250 is about 7247.8445071621. The cubic root of 52531250 is about 374.5178989938.

Adding to 52531250 its reverse (5213525), we get a palindrome (57744775).

The spelling of 52531250 in words is "fifty-two million, five hundred thirty-one thousand, two hundred fifty".