52205740 has 12 divisors (see below), whose sum is σ = 109632096. Its totient is φ = 20882288.

The previous prime is 52205729. The next prime is 52205743. The reversal of 52205740 is 4750225.

It is not an unprimeable number, because it can be changed into a prime (52205743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1305124 + ... + 1305163.

It is an arithmetic number, because the mean of its divisors is an integer number (9136008).

Almost surely, 2^52205740 is an apocalyptic number.

It is an amenable number.

52205740 is an abundant number, since it is smaller than the sum of its proper divisors (57426356).

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

52205740 is a wasteful number, since it uses less digits than its factorization.

52205740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2610296 (or 2610294 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 52205740 is about 7225.3539705678. The cubic root of 52205740 is about 373.7427286871.

Adding to 52205740 its reverse (4750225), we get a palindrome (56955965).

The spelling of 52205740 in words is "fifty-two million, two hundred five thousand, seven hundred forty".