525126545 has 4 divisors (see below), whose sum is σ = 630151860. Its totient is φ = 420101232.

The previous prime is 525126527. The next prime is 525126557. The reversal of 525126545 is 545621525.

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 298563841 + 226562704 = 17279^2 + 15052^2 .

It is a cyclic number.

It is not a de Polignac number, because 525126545 - 2⁸ = 525126289 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52512650 + ... + 52512659.

It is an arithmetic number, because the mean of its divisors is an integer number (157537965).

Almost surely, 2^525126545 is an apocalyptic number.

It is an amenable number.

525126545 is a deficient number, since it is larger than the sum of its proper divisors (105025315).

525126545 is a wasteful number, since it uses less digits than its factorization.

525126545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105025314.

The product of its digits is 60000, while the sum is 35.

The square root of 525126545 is about 22915.6397466883. The cubic root of 525126545 is about 806.7791340998.

The spelling of 525126545 in words is "five hundred twenty-five million, one hundred twenty-six thousand, five hundred forty-five".