818005525 has 24 divisors (see below), whose sum is σ = 1049520128. Its totient is φ = 631800000.

The previous prime is 818005519. The next prime is 818005567. The reversal of 818005525 is 525500818.

It is a happy number.

It is not a de Polignac number, because 818005525 - 2⁵ = 818005493 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 418300 + ... + 420250.

Almost surely, 2^818005525 is an apocalyptic number.

It is an amenable number.

818005525 is a deficient number, since it is larger than the sum of its proper divisors (231514603).

818005525 is a wasteful number, since it uses less digits than its factorization.

818005525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2533 (or 2528 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 34.

The square root of 818005525 is about 28600.7958805345. The cubic root of 818005525 is about 935.2306807834.

The spelling of 818005525 in words is "eight hundred eighteen million, five thousand, five hundred twenty-five".