525305505 has 16 divisors (see below), whose sum is σ = 842338944. Its totient is φ = 279546240.

The previous prime is 525305477. The next prime is 525305513. The reversal of 525305505 is 505503525.

It is not a de Polignac number, because 525305505 - 2¹² = 525301409 is a prime.

It is a Curzon number.

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, 31461 + ... + 45170.

It is an arithmetic number, because the mean of its divisors is an integer number (52646184).

Almost surely, 2^525305505 is an apocalyptic number.

It is an amenable number.

525305505 is a deficient number, since it is larger than the sum of its proper divisors (317033439).

525305505 is a wasteful number, since it uses less digits than its factorization.

525305505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77096.

The product of its (nonzero) digits is 18750, while the sum is 30.

The square root of 525305505 is about 22919.5441708599. The cubic root of 525305505 is about 806.8707721992.

The spelling of 525305505 in words is "five hundred twenty-five million, three hundred five thousand, five hundred five".