525247601 has 4 divisors (see below), whose sum is σ = 542191104. Its totient is φ = 508304100.

The previous prime is 525247553. The next prime is 525247603. The reversal of 525247601 is 106742525.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-525247601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525247603) 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, 8471705 + ... + 8471766.

It is an arithmetic number, because the mean of its divisors is an integer number (135547776).

Almost surely, 2^525247601 is an apocalyptic number.

It is an amenable number.

525247601 is a deficient number, since it is larger than the sum of its proper divisors (16943503).

525247601 is a wasteful number, since it uses less digits than its factorization.

525247601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16943502.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 525247601 is about 22918.2809346600. The cubic root of 525247601 is about 806.8411242061.

The spelling of 525247601 in words is "five hundred twenty-five million, two hundred forty-seven thousand, six hundred one".