506951988 has 12 divisors (see below), whose sum is σ = 1182888000. Its totient is φ = 168983992.

The previous prime is 506951971. The next prime is 506951989. The reversal of 506951988 is 889159605.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 506951988.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506951989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21122988 + ... + 21123011.

It is an arithmetic number, because the mean of its divisors is an integer number (98574000).

Almost surely, 2^506951988 is an apocalyptic number.

It is an amenable number.

506951988 is an abundant number, since it is smaller than the sum of its proper divisors (675936012).

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

506951988 is a wasteful number, since it uses less digits than its factorization.

506951988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42246006 (or 42246004 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 51.

The square root of 506951988 is about 22515.5943292643. The cubic root of 506951988 is about 797.3621387533.

The spelling of 506951988 in words is "five hundred six million, nine hundred fifty-one thousand, nine hundred eighty-eight".