517987054 has 16 divisors (see below), whose sum is σ = 838630800. Its totient is φ = 238533120.

The previous prime is 517987039. The next prime is 517987061. The reversal of 517987054 is 450789715.

It is a happy number.

It is a super-2 number, since 2×517987054² = 536621176223197832, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 517986995 and 517987013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10512 + ... + 33859.

It is an arithmetic number, because the mean of its divisors is an integer number (52414425).

Almost surely, 2^517987054 is an apocalyptic number.

517987054 is a deficient number, since it is larger than the sum of its proper divisors (320643746).

517987054 is a wasteful number, since it uses less digits than its factorization.

517987054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44835.

The product of its (nonzero) digits is 352800, while the sum is 46.

The square root of 517987054 is about 22759.3289444131. The cubic root of 517987054 is about 803.1061812302.

The spelling of 517987054 in words is "five hundred seventeen million, nine hundred eighty-seven thousand, fifty-four".