505213006404 has 48 divisors (see below), whose sum is σ = 1182884846528. Its totient is φ = 167825323008.

The previous prime is 505213006399. The next prime is 505213006429. The reversal of 505213006404 is 404600312505.

It is a super-2 number, since 2×505213006404² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30322044 + ... + 30338700.

Almost surely, 2^505213006404 is an apocalyptic number.

It is an amenable number.

505213006404 is an abundant number, since it is smaller than the sum of its proper divisors (677671840124).

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

505213006404 is a wasteful number, since it uses less digits than its factorization.

505213006404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25204 (or 25202 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 505213006404 its reverse (404600312505), we get a palindrome (909813318909).

The spelling of 505213006404 in words is "five hundred five billion, two hundred thirteen million, six thousand, four hundred four".