506716278 has 8 divisors (see below), whose sum is σ = 1013432568. Its totient is φ = 168905424.

The previous prime is 506716271. The next prime is 506716313. The reversal of 506716278 is 872617605.

It is a sphenic number, since it is the product of 3 distinct primes.

506716278 is an admirable number.

It is a super-2 number, since 2×506716278² = 513522772780346568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506716271) 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, 42226351 + ... + 42226362.

It is an arithmetic number, because the mean of its divisors is an integer number (126679071).

Almost surely, 2^506716278 is an apocalyptic number.

506716278 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

506716278 is a wasteful number, since it uses less digits than its factorization.

506716278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84452718.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 506716278 is about 22510.3593485311. The cubic root of 506716278 is about 797.2385403518.

The spelling of 506716278 in words is "five hundred six million, seven hundred sixteen thousand, two hundred seventy-eight".