511801072 has 40 divisors (see below), whose sum is σ = 1042968960. Its totient is φ = 242960640.

The previous prime is 511801051. The next prime is 511801079. The reversal of 511801072 is 270108115.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511801079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16554 + ... + 36022.

It is an arithmetic number, because the mean of its divisors is an integer number (26074224).

Almost surely, 2^511801072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 511801072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (521484480).

511801072 is an abundant number, since it is smaller than the sum of its proper divisors (531167888).

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

511801072 is a wasteful number, since it uses less digits than its factorization.

511801072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19561 (or 19555 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 25.

The square root of 511801072 is about 22623.0208416118. The cubic root of 511801072 is about 799.8963782454.

Adding to 511801072 its reverse (270108115), we get a palindrome (781909187).

The spelling of 511801072 in words is "five hundred eleven million, eight hundred one thousand, seventy-two".