525454165 has 4 divisors (see below), whose sum is σ = 630545004. Its totient is φ = 420363328.

The previous prime is 525454157. The next prime is 525454213. The reversal of 525454165 is 561454525.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 69588964 + 455865201 = 8342^2 + 21351^2 .

It is a cyclic number.

It is not a de Polignac number, because 525454165 - 2³ = 525454157 is a prime.

It is a super-2 number, since 2×525454165² = 552204159031694450, which contains 22 as substring.

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

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52545412 + ... + 52545421.

It is an arithmetic number, because the mean of its divisors is an integer number (157636251).

Almost surely, 2^525454165 is an apocalyptic number.

It is an amenable number.

525454165 is a deficient number, since it is larger than the sum of its proper divisors (105090839).

525454165 is a wasteful number, since it uses less digits than its factorization.

525454165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105090838.

The product of its digits is 120000, while the sum is 37.

The square root of 525454165 is about 22922.7870251416. The cubic root of 525454165 is about 806.9468790834.

The spelling of 525454165 in words is "five hundred twenty-five million, four hundred fifty-four thousand, one hundred sixty-five".