52671240 has 48 divisors (see below), whose sum is σ = 171182700. Its totient is φ = 14045568.

The previous prime is 52671209. The next prime is 52671251. The reversal of 52671240 is 4217625.

It can be written as a sum of positive squares in 2 ways, for example, as 52446564 + 224676 = 7242^2 + 474^2 .

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 11 ways as a sum of consecutive naturals, for example, 72795 + ... + 73514.

Almost surely, 2^52671240 is an apocalyptic number.

It is an amenable number.

52671240 is an abundant number, since it is smaller than the sum of its proper divisors (118511460).

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

52671240 is a wasteful number, since it uses less digits than its factorization.

52671240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146326 (or 146319 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 52671240 is about 7257.4954357547. The cubic root of 52671240 is about 374.8502869039.

Adding to 52671240 its reverse (4217625), we get a palindrome (56888865).

The spelling of 52671240 in words is "fifty-two million, six hundred seventy-one thousand, two hundred forty".