525522505 has 8 divisors (see below), whose sum is σ = 630751752. Its totient is φ = 420334848.

The previous prime is 525522451. The next prime is 525522523. The reversal of 525522505 is 505225525.

It can be written as a sum of positive squares in 4 ways, for example, as 5089536 + 520432969 = 2256^2 + 22813^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 525522505 - 2²⁵ = 491968073 is a prime.

It is a super-2 number, since 2×525522505² = 552347806522950050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37329 + ... + 49441.

It is an arithmetic number, because the mean of its divisors is an integer number (78843969).

Almost surely, 2^525522505 is an apocalyptic number.

It is an amenable number.

525522505 is a deficient number, since it is larger than the sum of its proper divisors (105229247).

525522505 is a wasteful number, since it uses less digits than its factorization.

525522505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20795.

The product of its (nonzero) digits is 25000, while the sum is 31.

The square root of 525522505 is about 22924.2776331120. The cubic root of 525522505 is about 806.9818611127.

The spelling of 525522505 in words is "five hundred twenty-five million, five hundred twenty-two thousand, five hundred five".