525496725 has 36 divisors (see below), whose sum is σ = 1013630436. Its totient is φ = 258704640.

The previous prime is 525496723. The next prime is 525496747. The reversal of 525496725 is 527694525.

525496725 is a `hidden beast` number, since 525 + 49 + 67 + 25 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 4835601 + 520661124 = 2199^2 + 22818^2 .

It is not a de Polignac number, because 525496725 - 2¹ = 525496723 is a prime.

It is a super-2 number, since 2×525496725² = 552293615971451250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525496721) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 86904 + ... + 92753.

It is an arithmetic number, because the mean of its divisors is an integer number (28156401).

Almost surely, 2^525496725 is an apocalyptic number.

It is an amenable number.

525496725 is a deficient number, since it is larger than the sum of its proper divisors (488133711).

525496725 is a wasteful number, since it uses less digits than its factorization.

525496725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179686 (or 179678 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The square root of 525496725 is about 22923.7153402323. The cubic root of 525496725 is about 806.9686651460.

The spelling of 525496725 in words is "five hundred twenty-five million, four hundred ninety-six thousand, seven hundred twenty-five".