525506493 has 8 divisors (see below), whose sum is σ = 700882528. Its totient is φ = 350234064.

The previous prime is 525506491. The next prime is 525506537. The reversal of 525506493 is 394605525.

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

It is not a de Polignac number, because 525506493 - 2¹ = 525506491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525506491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13171 + ... + 34992.

It is an arithmetic number, because the mean of its divisors is an integer number (87610316).

Almost surely, 2^525506493 is an apocalyptic number.

It is an amenable number.

525506493 is a deficient number, since it is larger than the sum of its proper divisors (175376035).

525506493 is a wasteful number, since it uses less digits than its factorization.

525506493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51803.

The product of its (nonzero) digits is 162000, while the sum is 39.

The square root of 525506493 is about 22923.9283937112. The cubic root of 525506493 is about 806.9736651271.

The spelling of 525506493 in words is "five hundred twenty-five million, five hundred six thousand, four hundred ninety-three".