525220705 has 48 divisors (see below), whose sum is σ = 697650624. Its totient is φ = 379209600.

The previous prime is 525220691. The next prime is 525220721. The reversal of 525220705 is 507022525.

It is not a de Polignac number, because 525220705 - 2¹¹ = 525218657 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5200155 + ... + 5200255.

It is an arithmetic number, because the mean of its divisors is an integer number (14534388).

Almost surely, 2^525220705 is an apocalyptic number.

It is an amenable number.

525220705 is a deficient number, since it is larger than the sum of its proper divisors (172429919).

525220705 is a wasteful number, since it uses less digits than its factorization.

525220705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 235 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 525220705 is about 22917.6941466632. The cubic root of 525220705 is about 806.8273521811.

The spelling of 525220705 in words is "five hundred twenty-five million, two hundred twenty thousand, seven hundred five".