511225330 has 48 divisors (see below), whose sum is σ = 1167768576. Its totient is φ = 159341280.

The previous prime is 511225327. The next prime is 511225339. The reversal of 511225330 is 33522115.

It is a super-2 number, since 2×511225330² = 522702676067217800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (511225339) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42034 + ... + 52813.

It is an arithmetic number, because the mean of its divisors is an integer number (24328512).

Almost surely, 2^511225330 is an apocalyptic number.

511225330 is an abundant number, since it is smaller than the sum of its proper divisors (656543246).

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

511225330 is a wasteful number, since it uses less digits than its factorization.

511225330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94879 (or 94872 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 511225330 is about 22610.2925677666. The cubic root of 511225330 is about 799.5963223814.

Adding to 511225330 its reverse (33522115), we get a palindrome (544747445).

The spelling of 511225330 in words is "five hundred eleven million, two hundred twenty-five thousand, three hundred thirty".