612425513 has 4 divisors (see below), whose sum is σ = 699914880. Its totient is φ = 524936148.

The previous prime is 612425507. The next prime is 612425551. The reversal of 612425513 is 315524216.

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 612425513 - 2⁴ = 612425497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (612425563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43744673 + ... + 43744686.

It is an arithmetic number, because the mean of its divisors is an integer number (174978720).

Almost surely, 2^612425513 is an apocalyptic number.

It is an amenable number.

612425513 is a deficient number, since it is larger than the sum of its proper divisors (87489367).

612425513 is an equidigital number, since it uses as much as digits as its factorization.

612425513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87489366.

The product of its digits is 7200, while the sum is 29.

The square root of 612425513 is about 24747.2324311225. The cubic root of 612425513 is about 849.2151985719.

Adding to 612425513 its reverse (315524216), we get a palindrome (927949729).

The spelling of 612425513 in words is "six hundred twelve million, four hundred twenty-five thousand, five hundred thirteen".