511220652 has 48 divisors (see below), whose sum is σ = 1211750400. Its totient is φ = 167726592.

The previous prime is 511220627. The next prime is 511220657. The reversal of 511220652 is 256022115.

It is a happy number.

It is a super-2 number, since 2×511220652² = 522693110062610208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (511220657) 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 15 ways as a sum of consecutive naturals, for example, 230533 + ... + 232739.

It is an arithmetic number, because the mean of its divisors is an integer number (25244800).

Almost surely, 2^511220652 is an apocalyptic number.

It is an amenable number.

511220652 is an abundant number, since it is smaller than the sum of its proper divisors (700529748).

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

511220652 is a wasteful number, since it uses less digits than its factorization.

511220652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2510 (or 2508 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 511220652 is about 22610.1891190675. The cubic root of 511220652 is about 799.5938834549.

Adding to 511220652 its reverse (256022115), we get a palindrome (767242767).

It can be divided in two parts, 51 and 1220652, that added together give a triangular number (1220703 = T₁₅₆₂).

The spelling of 511220652 in words is "five hundred eleven million, two hundred twenty thousand, six hundred fifty-two".