511206864 has 160 divisors (see below), whose sum is σ = 1650180096. Its totient is φ = 132986880.

The previous prime is 511206863. The next prime is 511206929. The reversal of 511206864 is 468602115.

It is a super-2 number, since 2×511206864² = 522664915601428992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511206863) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175629 + ... + 178515.

Almost surely, 2^511206864 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 511206864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (825090048).

511206864 is an abundant number, since it is smaller than the sum of its proper divisors (1138973232).

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

511206864 is a wasteful number, since it uses less digits than its factorization.

511206864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2953 (or 2947 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 511206864 is about 22609.8842102298. The cubic root of 511206864 is about 799.5866948437.

Adding to 511206864 its reverse (468602115), we get a palindrome (979808979).

The spelling of 511206864 in words is "five hundred eleven million, two hundred six thousand, eight hundred sixty-four".