52541640 has 48 divisors (see below), whose sum is σ = 170761500. Its totient is φ = 14011008.

The previous prime is 52541627. The next prime is 52541641. The reversal of 52541640 is 4614525.

It can be written as a sum of positive squares in 2 ways, for example, as 47692836 + 4848804 = 6906^2 + 2202^2 .

It is not an unprimeable number, because it can be changed into a prime (52541641) 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 11 ways as a sum of consecutive naturals, for example, 72615 + ... + 73334.

Almost surely, 2^52541640 is an apocalyptic number.

It is an amenable number.

52541640 is an abundant number, since it is smaller than the sum of its proper divisors (118219860).

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

52541640 is a wasteful number, since it uses less digits than its factorization.

52541640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145966 (or 145959 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 52541640 is about 7248.5612365489. The cubic root of 52541640 is about 374.5425889606.

The spelling of 52541640 in words is "fifty-two million, five hundred forty-one thousand, six hundred forty".