525420085 has 16 divisors (see below), whose sum is σ = 653368320. Its totient is φ = 405198720.

The previous prime is 525420067. The next prime is 525420107. The reversal of 525420085 is 580024525.

It is not a de Polignac number, because 525420085 - 2¹¹ = 525418037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 34321 + ... + 47209.

It is an arithmetic number, because the mean of its divisors is an integer number (40835520).

Almost surely, 2^525420085 is an apocalyptic number.

It is an amenable number.

525420085 is a deficient number, since it is larger than the sum of its proper divisors (127948235).

525420085 is a wasteful number, since it uses less digits than its factorization.

525420085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13188.

The product of its (nonzero) digits is 16000, while the sum is 31.

The square root of 525420085 is about 22922.0436479822. The cubic root of 525420085 is about 806.9294330046.

The spelling of 525420085 in words is "five hundred twenty-five million, four hundred twenty thousand, eighty-five".