525745660 has 48 divisors (see below), whose sum is σ = 1207084032. Its totient is φ = 190760000.

The previous prime is 525745657. The next prime is 525745673. The reversal of 525745660 is 66547525.

It is a congruent 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, 108285 + ... + 113035.

It is an arithmetic number, because the mean of its divisors is an integer number (25147584).

Almost surely, 2^525745660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525745660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (603542016).

525745660 is an abundant number, since it is smaller than the sum of its proper divisors (681338372).

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

525745660 is a wasteful number, since it uses less digits than its factorization.

525745660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5274 (or 5272 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 40.

The square root of 525745660 is about 22929.1443364117. The cubic root of 525745660 is about 807.0960690689.

The spelling of 525745660 in words is "five hundred twenty-five million, seven hundred forty-five thousand, six hundred sixty".