831520052 has 24 divisors (see below), whose sum is σ = 1621226880. Its totient is φ = 369920960.

The previous prime is 831520051. The next prime is 831520069. The reversal of 831520052 is 250025138.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (831520051) 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, 198977 + ... + 203112.

It is an arithmetic number, because the mean of its divisors is an integer number (67551120).

Almost surely, 2^831520052 is an apocalyptic number.

It is an amenable number.

831520052 is a deficient number, since it is larger than the sum of its proper divisors (789706828).

831520052 is a wasteful number, since it uses less digits than its factorization.

831520052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402151 (or 402149 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 831520052 is about 28836.0894019976. The cubic root of 831520052 is about 940.3529879970.

The spelling of 831520052 in words is "eight hundred thirty-one million, five hundred twenty thousand, fifty-two".