511220532 has 24 divisors (see below), whose sum is σ = 1263015936. Its totient is φ = 160382848.

The previous prime is 511220531. The next prime is 511220581. The reversal of 511220532 is 235022115.

It is a super-2 number, since 2×511220532² = 522692864676726048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 511220499 and 511220508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511220531) 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, 1252788 + ... + 1253195.

It is an arithmetic number, because the mean of its divisors is an integer number (52625664).

Almost surely, 2^511220532 is an apocalyptic number.

It is an amenable number.

511220532 is an abundant number, since it is smaller than the sum of its proper divisors (751795404).

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

511220532 is a wasteful number, since it uses less digits than its factorization.

511220532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2506007 (or 2506005 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 511220532 is about 22610.1864653965. The cubic root of 511220532 is about 799.5938208914.

Adding to 511220532 its reverse (235022115), we get a palindrome (746242647).

The spelling of 511220532 in words is "five hundred eleven million, two hundred twenty thousand, five hundred thirty-two".