512155332 has 96 divisors (see below), whose sum is σ = 1468745600. Its totient is φ = 153311616.

The previous prime is 512155331. The next prime is 512155333. The reversal of 512155332 is 233551215.

It is a happy number.

512155332 is a `hidden beast` number, since 5 + 121 + 5 + 533 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (512155331) and next prime (512155333).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 512155296 and 512155305.

It is not an unprimeable number, because it can be changed into a prime (512155331) 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, 47019 + ... + 56877.

Almost surely, 2^512155332 is an apocalyptic number.

512155332 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 512155332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (734372800).

512155332 is an abundant number, since it is smaller than the sum of its proper divisors (956590268).

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

512155332 is a wasteful number, since it uses less digits than its factorization.

512155332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9922 (or 9914 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 512155332 is about 22630.8491223816. The cubic root of 512155332 is about 800.0808939033.

The spelling of 512155332 in words is "five hundred twelve million, one hundred fifty-five thousand, three hundred thirty-two".