525420947 has 8 divisors (see below), whose sum is σ = 548768544. Its totient is φ = 502115328.

The previous prime is 525420919. The next prime is 525420949. The reversal of 525420947 is 749024525.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 525420947 - 2²⁶ = 458312083 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 525420947.

It is not an unprimeable number, because it can be changed into a prime (525420949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16613 + ... + 36425.

It is an arithmetic number, because the mean of its divisors is an integer number (68596068).

Almost surely, 2^525420947 is an apocalyptic number.

525420947 is a deficient number, since it is larger than the sum of its proper divisors (23347597).

525420947 is a wasteful number, since it uses less digits than its factorization.

525420947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20989.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 525420947 is about 22922.0624508354. The cubic root of 525420947 is about 806.9298742851.

The spelling of 525420947 in words is "five hundred twenty-five million, four hundred twenty thousand, nine hundred forty-seven".