525555545 has 8 divisors (see below), whose sum is σ = 652413960. Its totient is φ = 405946240.

The previous prime is 525555517. The next prime is 525555557. The reversal of 525555545 is 545555525.

It can be written as a sum of positive squares in 4 ways, for example, as 24870169 + 500685376 = 4987^2 + 22376^2 .

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

It is not a de Polignac number, because 525555545 - 2²² = 521361241 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1812116 + ... + 1812405.

It is an arithmetic number, because the mean of its divisors is an integer number (81551745).

Almost surely, 2^525555545 is an apocalyptic number.

It is an amenable number.

525555545 is a deficient number, since it is larger than the sum of its proper divisors (126858415).

525555545 is a wasteful number, since it uses less digits than its factorization.

525555545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3624555.

The product of its digits is 625000, while the sum is 41.

The square root of 525555545 is about 22924.9982551799. The cubic root of 525555545 is about 806.9987726130.

The spelling of 525555545 in words is "five hundred twenty-five million, five hundred fifty-five thousand, five hundred forty-five".