525697201 has 4 divisors (see below), whose sum is σ = 526838004. Its totient is φ = 524556400.

The previous prime is 525697189. The next prime is 525697213. The reversal of 525697201 is 102796525.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (525697189) and next prime (525697213).

It can be written as a sum of positive squares in 2 ways, for example, as 314140176 + 211557025 = 17724^2 + 14545^2 .

It is a cyclic number.

It is not a de Polignac number, because 525697201 - 2⁵ = 525697169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525697261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 569710 + ... + 570631.

It is an arithmetic number, because the mean of its divisors is an integer number (131709501).

Almost surely, 2^525697201 is an apocalyptic number.

It is an amenable number.

525697201 is a deficient number, since it is larger than the sum of its proper divisors (1140803).

525697201 is a wasteful number, since it uses less digits than its factorization.

525697201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140802.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 525697201 is about 22928.0876001467. The cubic root of 525697201 is about 807.0712711021.

The spelling of 525697201 in words is "five hundred twenty-five million, six hundred ninety-seven thousand, two hundred one".