213055440504 has 32 divisors (see below), whose sum is σ = 532904641920. Its totient is φ = 70983008096.

The previous prime is 213055440491. The next prime is 213055440539. The reversal of 213055440504 is 405044550312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2167932 + ... + 2264075.

It is an arithmetic number, because the mean of its divisors is an integer number (16653270060).

Almost surely, 2^213055440504 is an apocalyptic number.

213055440504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

213055440504 is an abundant number, since it is smaller than the sum of its proper divisors (319849201416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213055440504 is a wasteful number, since it uses less digits than its factorization.

213055440504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4434019 (or 4434015 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 213055440504 its reverse (405044550312), we get a palindrome (618099990816).

The spelling of 213055440504 in words is "two hundred thirteen billion, fifty-five million, four hundred forty thousand, five hundred four".