509477948 has 24 divisors (see below), whose sum is σ = 1021998432. Its totient is φ = 217695744.

The previous prime is 509477939. The next prime is 509477953. The reversal of 509477948 is 849774905.

It is a Smith number, since the sum of its digits (53) 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 509477948.

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, 17561 + ... + 36432.

It is an arithmetic number, because the mean of its divisors is an integer number (42583268).

Almost surely, 2^509477948 is an apocalyptic number.

It is an amenable number.

509477948 is an abundant number, since it is smaller than the sum of its proper divisors (512520484).

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

509477948 is a wasteful number, since it uses less digits than its factorization.

509477948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54341 (or 54339 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 53.

The square root of 509477948 is about 22571.6181963102. The cubic root of 509477948 is about 798.6842684996.

The spelling of 509477948 in words is "five hundred nine million, four hundred seventy-seven thousand, nine hundred forty-eight".