525555625 has 45 divisors (see below), whose sum is σ = 769832481. Its totient is φ = 357630000.

The previous prime is 525555623. The next prime is 525555647. The reversal of 525555625 is 526555525.

The square root of 525555625 is 22925.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 41203561 + 484352064 = 6419^2 + 22008^2 .

It is not a de Polignac number, because 525555625 - 2¹ = 525555623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525555623) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 4011810 + ... + 4011940.

Almost surely, 2^525555625 is an apocalyptic number.

525555625 is the 22925-th square number.

525555625 is the 11463-rd centered octagonal number.

It is an amenable number.

525555625 is a deficient number, since it is larger than the sum of its proper divisors (244276856).

525555625 is an frugal number, since it uses more digits than its factorization.

525555625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296 (or 143 counting only the distinct ones).

The product of its digits is 375000, while the sum is 40.

The cubic root of 525555625 is about 806.9988135601.

The spelling of 525555625 in words is "five hundred twenty-five million, five hundred fifty-five thousand, six hundred twenty-five".