52507250 has 32 divisors (see below), whose sum is σ = 99066240. Its totient is φ = 20838000.

The previous prime is 52507243. The next prime is 52507253. The reversal of 52507250 is 5270525.

It is a super-2 number, since 2×52507250² = 5514022605125000, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (52507253) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 33995 + ... + 35505.

It is an arithmetic number, because the mean of its divisors is an integer number (3095820).

Almost surely, 2^52507250 is an apocalyptic number.

52507250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

52507250 is a deficient number, since it is larger than the sum of its proper divisors (46558990).

52507250 is a wasteful number, since it uses less digits than its factorization.

52507250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667 (or 1657 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 26.

The square root of 52507250 is about 7246.1886533543. The cubic root of 52507250 is about 374.4608548612.

Adding to 52507250 its reverse (5270525), we get a palindrome (57777775).

The spelling of 52507250 in words is "fifty-two million, five hundred seven thousand, two hundred fifty".