525531423 has 8 divisors (see below), whose sum is σ = 717004288. Its totient is φ = 342206424.

The previous prime is 525531403. The next prime is 525531449. The reversal of 525531423 is 324135525.

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

It is not a de Polignac number, because 525531423 - 2¹³ = 525523231 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 (525531403) 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, 2036815 + ... + 2037072.

It is an arithmetic number, because the mean of its divisors is an integer number (89625536).

Almost surely, 2^525531423 is an apocalyptic number.

525531423 is a deficient number, since it is larger than the sum of its proper divisors (191472865).

525531423 is a wasteful number, since it uses less digits than its factorization.

525531423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4073933.

The product of its digits is 18000, while the sum is 30.

The square root of 525531423 is about 22924.4721422326. The cubic root of 525531423 is about 806.9864258545.

Adding to 525531423 its reverse (324135525), we get a palindrome (849666948).

The spelling of 525531423 in words is "five hundred twenty-five million, five hundred thirty-one thousand, four hundred twenty-three".