525405130 has 16 divisors (see below), whose sum is σ = 946108800. Its totient is φ = 210077712.

The previous prime is 525405121. The next prime is 525405137. The reversal of 525405130 is 31504525.

It is a junction number, because it is equal to n+sod(n) for n = 525405095 and 525405104.

It is not an unprimeable number, because it can be changed into a prime (525405137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19771 + ... + 37969.

It is an arithmetic number, because the mean of its divisors is an integer number (59131800).

Almost surely, 2^525405130 is an apocalyptic number.

525405130 is a deficient number, since it is larger than the sum of its proper divisors (420703670).

525405130 is a wasteful number, since it uses less digits than its factorization.

525405130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21093.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 525405130 is about 22921.7174312921. The cubic root of 525405130 is about 806.9217770708.

Adding to 525405130 its reverse (31504525), we get a palindrome (556909655).

The spelling of 525405130 in words is "five hundred twenty-five million, four hundred five thousand, one hundred thirty".