517535442 has 12 divisors (see below), whose sum is σ = 1121326830. Its totient is φ = 172511808.

The previous prime is 517535441. The next prime is 517535507. The reversal of 517535442 is 244535715.

517535442 is a `hidden beast` number, since 517 + 53 + 54 + 42 = 666.

It can be written as a sum of positive squares in only one way, i.e., 433097721 + 84437721 = 20811^2 + 9189^2 .

It is a super-2 number, since 2×517535442² = 535685867452270728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 517535397 and 517535406.

It is not an unprimeable number, because it can be changed into a prime (517535441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14375967 + ... + 14376002.

Almost surely, 2^517535442 is an apocalyptic number.

517535442 is an abundant number, since it is smaller than the sum of its proper divisors (603791388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

517535442 is a wasteful number, since it uses less digits than its factorization.

517535442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28751977 (or 28751974 counting only the distinct ones).

The product of its digits is 84000, while the sum is 36.

The square root of 517535442 is about 22749.4053109087. The cubic root of 517535442 is about 802.8727147484.

The spelling of 517535442 in words is "five hundred seventeen million, five hundred thirty-five thousand, four hundred forty-two".