513232453 has 4 divisors (see below), whose sum is σ = 513480928. Its totient is φ = 512983980.

The previous prime is 513232403. The next prime is 513232463. The reversal of 513232453 is 354232315.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 513232453 - 2⁹ = 513231941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513232403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121113 + ... + 125278.

It is an arithmetic number, because the mean of its divisors is an integer number (128370232).

Almost surely, 2^513232453 is an apocalyptic number.

It is an amenable number.

513232453 is a deficient number, since it is larger than the sum of its proper divisors (248475).

513232453 is a wasteful number, since it uses less digits than its factorization.

513232453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248474.

The product of its digits is 10800, while the sum is 28.

The square root of 513232453 is about 22654.6342499719. The cubic root of 513232453 is about 800.6413882431.

Adding to 513232453 its reverse (354232315), we get a palindrome (867464768).

The spelling of 513232453 in words is "five hundred thirteen million, two hundred thirty-two thousand, four hundred fifty-three".