525845245 has 8 divisors (see below), whose sum is σ = 637520184. Its totient is φ = 416338944.

The previous prime is 525845239. The next prime is 525845249. The reversal of 525845245 is 542548525.

It can be written as a sum of positive squares in 4 ways, for example, as 51868804 + 473976441 = 7202^2 + 21771^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 525845245 - 2²³ = 517456637 is a prime.

It is a super-2 number, since 2×525845245² = 553026443378220050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 525845198 and 525845207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525845249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 541624 + ... + 542593.

It is an arithmetic number, because the mean of its divisors is an integer number (79690023).

Almost surely, 2^525845245 is an apocalyptic number.

It is an amenable number.

525845245 is a deficient number, since it is larger than the sum of its proper divisors (111674939).

525845245 is a wasteful number, since it uses less digits than its factorization.

525845245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084319.

The product of its digits is 320000, while the sum is 40.

The square root of 525845245 is about 22931.3158148415. The cubic root of 525845245 is about 807.1470250056.

The spelling of 525845245 in words is "five hundred twenty-five million, eight hundred forty-five thousand, two hundred forty-five".