513104452 has 24 divisors (see below), whose sum is σ = 1048045824. Its totient is φ = 215222592.

The previous prime is 513104437. The next prime is 513104477. The reversal of 513104452 is 254401315.

It is a happy 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, 193633 + ... + 196264.

It is an arithmetic number, because the mean of its divisors is an integer number (43668576).

Almost surely, 2^513104452 is an apocalyptic number.

It is an amenable number.

513104452 is an abundant number, since it is smaller than the sum of its proper divisors (534941372).

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

513104452 is a wasteful number, since it uses less digits than its factorization.

513104452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389955 (or 389953 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 513104452 is about 22651.8090226807. The cubic root of 513104452 is about 800.5748222919.

Adding to 513104452 its reverse (254401315), we get a palindrome (767505767).

The spelling of 513104452 in words is "five hundred thirteen million, one hundred four thousand, four hundred fifty-two".