525585090 has 64 divisors (see below), whose sum is σ = 1341639936. Its totient is φ = 131315712.

The previous prime is 525585079. The next prime is 525585101. The reversal of 525585090 is 90585525.

It is an interprime number because it is at equal distance from previous prime (525585079) and next prime (525585101).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116619 + ... + 121041.

It is an arithmetic number, because the mean of its divisors is an integer number (20963124).

Almost surely, 2^525585090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525585090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (670819968).

525585090 is an abundant number, since it is smaller than the sum of its proper divisors (816054846).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

525585090 is a wasteful number, since it uses less digits than its factorization.

525585090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4683.

The product of its (nonzero) digits is 90000, while the sum is 39.

The square root of 525585090 is about 22925.6426300333. The cubic root of 525585090 is about 807.0138945998.

The spelling of 525585090 in words is "five hundred twenty-five million, five hundred eighty-five thousand, ninety".