505315452 has 24 divisors (see below), whose sum is σ = 1179629136. Its totient is φ = 168358528.

The previous prime is 505315439. The next prime is 505315453. The reversal of 505315452 is 254513505.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505315453) 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, 19918 + ... + 37514.

It is an arithmetic number, because the mean of its divisors is an integer number (49151214).

Almost surely, 2^505315452 is an apocalyptic number.

It is an amenable number.

505315452 is an abundant number, since it is smaller than the sum of its proper divisors (674313684).

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

505315452 is a wasteful number, since it uses less digits than its factorization.

505315452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19997 (or 19995 counting only the distinct ones).

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

The square root of 505315452 is about 22479.2226733933. Note that the first 3 decimals coincide. The cubic root of 505315452 is about 796.5032023607.

Adding to 505315452 its reverse (254513505), we get a palindrome (759828957).

The spelling of 505315452 in words is "five hundred five million, three hundred fifteen thousand, four hundred fifty-two".