522431403 has 16 divisors (see below), whose sum is σ = 794285856. Its totient is φ = 302584320.

The previous prime is 522431383. The next prime is 522431411. The reversal of 522431403 is 304134225.

It is a de Polignac number, because none of the positive numbers 2^k-522431403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (522431423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 393328 + ... + 394653.

It is an arithmetic number, because the mean of its divisors is an integer number (49642866).

Almost surely, 2^522431403 is an apocalyptic number.

522431403 is a deficient number, since it is larger than the sum of its proper divisors (271854453).

522431403 is a wasteful number, since it uses less digits than its factorization.

522431403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788014.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 522431403 is about 22856.7583659626. The cubic root of 522431403 is about 805.3965372728.

Adding to 522431403 its reverse (304134225), we get a palindrome (826565628).

The spelling of 522431403 in words is "five hundred twenty-two million, four hundred thirty-one thousand, four hundred three".