525213122003 has 4 divisors (see below), whose sum is σ = 525303572640. Its totient is φ = 525122671368.

The previous prime is 525213121999. The next prime is 525213122033. The reversal of 525213122003 is 300221312525.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 525213122003 - 2² = 525213121999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525213122033) 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, 45216608 + ... + 45228221.

It is an arithmetic number, because the mean of its divisors is an integer number (131325893160).

Almost surely, 2^525213122003 is an apocalyptic number.

525213122003 is a deficient number, since it is larger than the sum of its proper divisors (90450637).

525213122003 is an equidigital number, since it uses as much as digits as its factorization.

525213122003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90450636.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 525213122003 its reverse (300221312525), we get a palindrome (825434434528).

The spelling of 525213122003 in words is "five hundred twenty-five billion, two hundred thirteen million, one hundred twenty-two thousand, three".