418525 has 6 divisors (see below), whose sum is σ = 519002. Its totient is φ = 334800.

The previous prime is 418511. The next prime is 418553. The reversal of 418525 is 525814.

It can be written as a sum of positive squares in 3 ways, for example, as 120409 + 298116 = 347^2 + 546^2 .

It is not a de Polignac number, because 418525 - 2⁵ = 418493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 16741 = 418525 / (4 + 1 + 8 + 5 + 2 + 5).

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 418525.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8346 + ... + 8395.

2⁴¹⁸⁵²⁵ is an apocalyptic number.

It is an amenable number.

418525 is a deficient number, since it is larger than the sum of its proper divisors (100477).

418525 is a wasteful number, since it uses less digits than its factorization.

418525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16751 (or 16746 counting only the distinct ones).

The product of its digits is 1600, while the sum is 25.

The square root of 418525 is about 646.9350817509. The cubic root of 418525 is about 74.8009536897.

The spelling of 418525 in words is "four hundred eighteen thousand, five hundred twenty-five".