513423051 has 4 divisors (see below), whose sum is σ = 684564072. Its totient is φ = 342282032.

The previous prime is 513423041. The next prime is 513423067. The reversal of 513423051 is 150324315.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 513423051 - 2⁵ = 513423019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (513423011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85570506 + ... + 85570511.

It is an arithmetic number, because the mean of its divisors is an integer number (171141018).

Almost surely, 2^513423051 is an apocalyptic number.

513423051 is a deficient number, since it is larger than the sum of its proper divisors (171141021).

513423051 is a wasteful number, since it uses less digits than its factorization.

513423051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171141020.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 513423051 is about 22658.8404601824. The cubic root of 513423051 is about 800.7404867835.

Adding to 513423051 its reverse (150324315), we get a palindrome (663747366).

The spelling of 513423051 in words is "five hundred thirteen million, four hundred twenty-three thousand, fifty-one".