517442542 has 32 divisors (see below), whose sum is σ = 836709120. Its totient is φ = 239267520.

The previous prime is 517442539. The next prime is 517442557. The reversal of 517442542 is 245244715.

It is a junction number, because it is equal to n+sod(n) for n = 517442498 and 517442507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284817 + ... + 286627.

It is an arithmetic number, because the mean of its divisors is an integer number (26147160).

Almost surely, 2^517442542 is an apocalyptic number.

517442542 is a deficient number, since it is larger than the sum of its proper divisors (319266578).

517442542 is a wasteful number, since it uses less digits than its factorization.

517442542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008.

The product of its digits is 44800, while the sum is 34.

The square root of 517442542 is about 22747.3634076567. The cubic root of 517442542 is about 802.8246720879.

The spelling of 517442542 in words is "five hundred seventeen million, four hundred forty-two thousand, five hundred forty-two".