513054403 has 2 divisors, whose sum is σ = 513054404. Its totient is φ = 513054402.

The previous prime is 513054401. The next prime is 513054419. The reversal of 513054403 is 304450315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 513054403 - 2¹ = 513054401 is a prime.

Together with 513054401, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (513054401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256527201 + 256527202.

It is an arithmetic number, because the mean of its divisors is an integer number (256527202).

Almost surely, 2^513054403 is an apocalyptic number.

513054403 is a deficient number, since it is larger than the sum of its proper divisors (1).

513054403 is an equidigital number, since it uses as much as digits as its factorization.

513054403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 513054403 is about 22650.7042495371. The cubic root of 513054403 is about 800.5487916777.

The spelling of 513054403 in words is "five hundred thirteen million, fifty-four thousand, four hundred three".