810825532 has 48 divisors (see below), whose sum is σ = 1700294400. Its totient is φ = 333970560.

The previous prime is 810825493. The next prime is 810825539. The reversal of 810825532 is 235528018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810825539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1857 + ... + 40312.

It is an arithmetic number, because the mean of its divisors is an integer number (35422800).

Almost surely, 2^810825532 is an apocalyptic number.

It is an amenable number.

810825532 is an abundant number, since it is smaller than the sum of its proper divisors (889468868).

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

810825532 is a wasteful number, since it uses less digits than its factorization.

810825532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42226 (or 42224 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 810825532 is about 28474.9983669885. The cubic root of 810825532 is about 932.4863257272.

The spelling of 810825532 in words is "eight hundred ten million, eight hundred twenty-five thousand, five hundred thirty-two".