513424421555 has 16 divisors (see below), whose sum is σ = 620658400320. Its totient is φ = 407707310592.

The previous prime is 513424421527. The next prime is 513424421557. The reversal of 513424421555 is 555124424315.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 513424421555 - 2⁶ = 513424421491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (513424421557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10975706 + ... + 11022384.

It is an arithmetic number, because the mean of its divisors is an integer number (38791150020).

Almost surely, 2^513424421555 is an apocalyptic number.

513424421555 is a deficient number, since it is larger than the sum of its proper divisors (107233978765).

513424421555 is a wasteful number, since it uses less digits than its factorization.

513424421555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62878.

The product of its digits is 480000, while the sum is 41.

The spelling of 513424421555 in words is "five hundred thirteen billion, four hundred twenty-four million, four hundred twenty-one thousand, five hundred fifty-five".