513552655977 has 4 divisors (see below), whose sum is σ = 684736874640. Its totient is φ = 342368437316.

The previous prime is 513552655961. The next prime is 513552655991. The reversal of 513552655977 is 779556255315.

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 513552655977 - 2⁴ = 513552655961 is a prime.

It is a super-2 number, since 2×513552655977² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 513552655977.

It is not an unprimeable number, because it can be changed into a prime (513552655927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85592109327 + ... + 85592109332.

It is an arithmetic number, because the mean of its divisors is an integer number (171184218660).

Almost surely, 2^513552655977 is an apocalyptic number.

It is an amenable number.

513552655977 is a deficient number, since it is larger than the sum of its proper divisors (171184218663).

513552655977 is a wasteful number, since it uses less digits than its factorization.

513552655977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171184218662.

The product of its digits is 49612500, while the sum is 60.

The spelling of 513552655977 in words is "five hundred thirteen billion, five hundred fifty-two million, six hundred fifty-five thousand, nine hundred seventy-seven".