525345516 has 36 divisors (see below), whose sum is σ = 1397851000. Its totient is φ = 165898368.

The previous prime is 525345511. The next prime is 525345521. The reversal of 525345516 is 615543525.

525345516 is a `hidden beast` number, since 52 + 53 + 4 + 551 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (525345511) and next prime (525345521).

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×525345516² = 551975822362612512, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (525345511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 383341 + ... + 384708.

Almost surely, 2^525345516 is an apocalyptic number.

It is an amenable number.

525345516 is an abundant number, since it is smaller than the sum of its proper divisors (872505484).

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

525345516 is a wasteful number, since it uses less digits than its factorization.

525345516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768078 (or 768073 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The square root of 525345516 is about 22920.4170119132. The cubic root of 525345516 is about 806.8912573496.

The spelling of 525345516 in words is "five hundred twenty-five million, three hundred forty-five thousand, five hundred sixteen".