525645601 has 12 divisors (see below), whose sum is σ = 578532540. Its totient is φ = 477247680.

The previous prime is 525645599. The next prime is 525645649. The reversal of 525645601 is 106546525.

It can be written as a sum of positive squares in 6 ways, for example, as 205951201 + 319694400 = 14351^2 + 17880^2 .

It is not a de Polignac number, because 525645601 - 2¹ = 525645599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (525645671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15186 + ... + 35803.

It is an arithmetic number, because the mean of its divisors is an integer number (48211045).

Almost surely, 2^525645601 is an apocalyptic number.

It is an amenable number.

525645601 is a deficient number, since it is larger than the sum of its proper divisors (52886939).

525645601 is a wasteful number, since it uses less digits than its factorization.

525645601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51076 (or 51063 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 525645601 is about 22926.9623151433. The cubic root of 525645601 is about 807.0448641134.

The spelling of 525645601 in words is "five hundred twenty-five million, six hundred forty-five thousand, six hundred one".