505431552 has 80 divisors (see below), whose sum is σ = 1357627392. Its totient is φ = 167086080.

The previous prime is 505431551. The next prime is 505431557. The reversal of 505431552 is 255134505.

It is a happy number.

It is a super-2 number, since 2×505431552² = 510922107514257408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505431551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193777 + ... + 196367.

Almost surely, 2^505431552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 505431552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (678813696).

505431552 is an abundant number, since it is smaller than the sum of its proper divisors (852195840).

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

505431552 is a wasteful number, since it uses less digits than its factorization.

505431552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2739 (or 2723 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 505431552 is about 22481.8049097487. The cubic root of 505431552 is about 796.5641985431.

The spelling of 505431552 in words is "five hundred five million, four hundred thirty-one thousand, five hundred fifty-two".