811625063 has 8 divisors (see below), whose sum is σ = 825826560. Its totient is φ = 797438520.

The previous prime is 811625057. The next prime is 811625077. The reversal of 811625063 is 360526118.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 811625063 - 2⁴ = 811625047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811625083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215906 + ... + 219632.

It is an arithmetic number, because the mean of its divisors is an integer number (103228320).

Almost surely, 2^811625063 is an apocalyptic number.

811625063 is a deficient number, since it is larger than the sum of its proper divisors (14201497).

811625063 is a wasteful number, since it uses less digits than its factorization.

811625063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7477.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 811625063 is about 28489.0340833100. The cubic root of 811625063 is about 932.7927240722.

The spelling of 811625063 in words is "eight hundred eleven million, six hundred twenty-five thousand, sixty-three".