525040130 has 8 divisors (see below), whose sum is σ = 945072252. Its totient is φ = 210016048.

The previous prime is 525040123. The next prime is 525040141. The reversal of 525040130 is 31040525.

It can be written as a sum of positive squares in 2 ways, for example, as 501894409 + 23145721 = 22403^2 + 4811^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×525040130² = 551334276220833800, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26251997 + ... + 26252016.

Almost surely, 2^525040130 is an apocalyptic number.

525040130 is a deficient number, since it is larger than the sum of its proper divisors (420032122).

525040130 is a wasteful number, since it uses less digits than its factorization.

525040130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52504020.

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

The square root of 525040130 is about 22913.7541664390. The cubic root of 525040130 is about 806.7348770573.

Adding to 525040130 its reverse (31040525), we get a palindrome (556080655).

The spelling of 525040130 in words is "five hundred twenty-five million, forty thousand, one hundred thirty".