52405530 has 32 divisors (see below), whose sum is σ = 126316800. Its totient is φ = 13914432.

The previous prime is 52405513. The next prime is 52405547. The reversal of 52405530 is 3550425.

It is an interprime number because it is at equal distance from previous prime (52405513) and next prime (52405547).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 52405530.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3516 + ... + 10824.

It is an arithmetic number, because the mean of its divisors is an integer number (3947400).

Almost surely, 2^52405530 is an apocalyptic number.

52405530 is an abundant number, since it is smaller than the sum of its proper divisors (73911270).

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

52405530 is a wasteful number, since it uses less digits than its factorization.

52405530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7558.

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 52405530 is about 7239.1663884732. The cubic root of 52405530 is about 374.2188896629.

Adding to 52405530 its reverse (3550425), we get a palindrome (55955955).

The spelling of 52405530 in words is "fifty-two million, four hundred five thousand, five hundred thirty".