52405130 has 16 divisors (see below), whose sum is σ = 94416840. Its totient is φ = 20942592.

The previous prime is 52405099. The next prime is 52405147. The reversal of 52405130 is 3150425.

It can be written as a sum of positive squares in 4 ways, for example, as 52258441 + 146689 = 7229^2 + 383^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14462 + ... + 17718.

Almost surely, 2^52405130 is an apocalyptic number.

52405130 is a deficient number, since it is larger than the sum of its proper divisors (42011710).

52405130 is a wasteful number, since it uses less digits than its factorization.

52405130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4873.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 52405130 is about 7239.1387609301. The cubic root of 52405130 is about 374.2179375501.

Adding to 52405130 its reverse (3150425), we get a palindrome (55555555).

The spelling of 52405130 in words is "fifty-two million, four hundred five thousand, one hundred thirty".