525021285 has 32 divisors (see below), whose sum is σ = 890756352. Its totient is φ = 263152640.

The previous prime is 525021247. The next prime is 525021293. The reversal of 525021285 is 582120525.

It is not a de Polignac number, because 525021285 - 2⁹ = 525020773 is a prime.

It is a congruent 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, 261907 + ... + 263903.

It is an arithmetic number, because the mean of its divisors is an integer number (27836136).

Almost surely, 2^525021285 is an apocalyptic number.

It is an amenable number.

525021285 is a deficient number, since it is larger than the sum of its proper divisors (365735067).

525021285 is a wasteful number, since it uses less digits than its factorization.

525021285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3053.

The product of its (nonzero) digits is 8000, while the sum is 30.

The square root of 525021285 is about 22913.3429468509. The cubic root of 525021285 is about 806.7252250328.

The spelling of 525021285 in words is "five hundred twenty-five million, twenty-one thousand, two hundred eighty-five".