525342090 has 128 divisors (see below), whose sum is σ = 1561190400. Its totient is φ = 110170368.

The previous prime is 525342079. The next prime is 525342101. The reversal of 525342090 is 90243525.

525342090 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (525342079) and next prime (525342101).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 542787 + ... + 543753.

It is an arithmetic number, because the mean of its divisors is an integer number (12196800).

Almost surely, 2^525342090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525342090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (780595200).

525342090 is an abundant number, since it is smaller than the sum of its proper divisors (1035848310).

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

525342090 is a wasteful number, since it uses less digits than its factorization.

525342090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 525342090 is about 22920.3422749312. The cubic root of 525342090 is about 806.8895033196.

The spelling of 525342090 in words is "five hundred twenty-five million, three hundred forty-two thousand, ninety".