52526240 has 48 divisors (see below), whose sum is σ = 133644168. Its totient is φ = 19393536.

The previous prime is 52526239. The next prime is 52526291. The reversal of 52526240 is 4262525.

It can be written as a sum of positive squares in 4 ways, for example, as 45535504 + 6990736 = 6748^2 + 2644^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

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 7 ways as a sum of consecutive naturals, for example, 10547 + ... + 14706.

Almost surely, 2^52526240 is an apocalyptic number.

It is an amenable number.

52526240 is an abundant number, since it is smaller than the sum of its proper divisors (81117928).

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

52526240 is a wasteful number, since it uses less digits than its factorization.

52526240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25281 (or 25273 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 52526240 is about 7247.4988789237. The cubic root of 52526240 is about 374.5059924662.

Adding to 52526240 its reverse (4262525), we get a palindrome (56788765).

The spelling of 52526240 in words is "fifty-two million, five hundred twenty-six thousand, two hundred forty".