506553404 has 24 divisors (see below), whose sum is σ = 1034664960. Its totient is φ = 212474736.

The previous prime is 506553371. The next prime is 506553419. The reversal of 506553404 is 404355605.

It is a super-2 number, since 2×506553404² = 513192702207974432, which contains 22 as substring.

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, 191144 + ... + 193775.

It is an arithmetic number, because the mean of its divisors is an integer number (43111040).

Almost surely, 2^506553404 is an apocalyptic number.

It is an amenable number.

506553404 is an abundant number, since it is smaller than the sum of its proper divisors (528111556).

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

506553404 is a wasteful number, since it uses less digits than its factorization.

506553404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384977 (or 384975 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

The square root of 506553404 is about 22506.7413012191. The cubic root of 506553404 is about 797.1531123054.

The spelling of 506553404 in words is "five hundred six million, five hundred fifty-three thousand, four hundred four".