513995479 has 2 divisors, whose sum is σ = 513995480. Its totient is φ = 513995478.

The previous prime is 513995423. The next prime is 513995491. The reversal of 513995479 is 974599315.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 513995479 - 2¹⁹ = 513471191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513995879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256997739 + 256997740.

It is an arithmetic number, because the mean of its divisors is an integer number (256997740).

Almost surely, 2^513995479 is an apocalyptic number.

513995479 is a deficient number, since it is larger than the sum of its proper divisors (1).

513995479 is an equidigital number, since it uses as much as digits as its factorization.

513995479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1530900, while the sum is 52.

The square root of 513995479 is about 22671.4683909093. The cubic root of 513995479 is about 801.0379646834.

The spelling of 513995479 in words is "five hundred thirteen million, nine hundred ninety-five thousand, four hundred seventy-nine".