513155255514514 has 4 divisors (see below), whose sum is σ = 769732883271774. Its totient is φ = 256577627757256.

The previous prime is 513155255514463. The next prime is 513155255514541. The reversal of 513155255514514 is 415415552551315.

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

It can be written as a sum of positive squares in only one way, i.e., 265138270926489 + 248016984588025 = 16283067^2 + 15748555^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128288813878627 + ... + 128288813878630.

Almost surely, 2^{513155255514514} is an apocalyptic number.

513155255514514 is a deficient number, since it is larger than the sum of its proper divisors (256577627757260).

513155255514514 is a wasteful number, since it uses less digits than its factorization.

513155255514514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256577627757259.

The product of its digits is 7500000, while the sum is 52.

The spelling of 513155255514514 in words is "five hundred thirteen trillion, one hundred fifty-five billion, two hundred fifty-five million, five hundred fourteen thousand, five hundred fourteen".