811375052 has 12 divisors (see below), whose sum is σ = 1421366520. Its totient is φ = 405270336.

The previous prime is 811375051. The next prime is 811375057. The reversal of 811375052 is 250573118.

It is not an unprimeable number, because it can be changed into a prime (811375051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99902 + ... + 107717.

It is an arithmetic number, because the mean of its divisors is an integer number (118447210).

Almost surely, 2^811375052 is an apocalyptic number.

It is an amenable number.

811375052 is a deficient number, since it is larger than the sum of its proper divisors (609991468).

811375052 is a wasteful number, since it uses less digits than its factorization.

811375052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208600 (or 208598 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 811375052 is about 28484.6458991507. The cubic root of 811375052 is about 932.6969358394.

The spelling of 811375052 in words is "eight hundred eleven million, three hundred seventy-five thousand, fifty-two".