525430663 has 4 divisors (see below), whose sum is σ = 528654328. Its totient is φ = 522207000.

The previous prime is 525430657. The next prime is 525430681. The reversal of 525430663 is 366034525.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 525430663 - 2⁹ = 525430151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525430603) 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, 1611588 + ... + 1611913.

It is an arithmetic number, because the mean of its divisors is an integer number (132163582).

Almost surely, 2^525430663 is an apocalyptic number.

525430663 is a deficient number, since it is larger than the sum of its proper divisors (3223665).

525430663 is a wasteful number, since it uses less digits than its factorization.

525430663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3223664.

The product of its (nonzero) digits is 64800, while the sum is 34.

The square root of 525430663 is about 22922.2743854095. The cubic root of 525430663 is about 806.9348481271.

The spelling of 525430663 in words is "five hundred twenty-five million, four hundred thirty thousand, six hundred sixty-three".