525545045 has 8 divisors (see below), whose sum is σ = 631896120. Its totient is φ = 419608000.

The previous prime is 525544993. The next prime is 525545057. The reversal of 525545045 is 540545525.

It can be written as a sum of positive squares in 4 ways, for example, as 233203441 + 292341604 = 15271^2 + 17098^2 .

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

It is not a de Polignac number, because 525545045 - 2²² = 521350741 is a prime.

It is a super-4 number, since 4×525545045⁴ (a number of 36 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 525544996 and 525545014.

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 7 ways as a sum of consecutive naturals, for example, 100706 + ... + 105795.

It is an arithmetic number, because the mean of its divisors is an integer number (78987015).

Almost surely, 2^525545045 is an apocalyptic number.

It is an amenable number.

525545045 is a deficient number, since it is larger than the sum of its proper divisors (106351075).

525545045 is a wasteful number, since it uses less digits than its factorization.

525545045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207015.

The product of its (nonzero) digits is 100000, while the sum is 35.

The square root of 525545045 is about 22924.7692463850. The cubic root of 525545045 is about 806.9933982724.

The spelling of 525545045 in words is "five hundred twenty-five million, five hundred forty-five thousand, forty-five".