812525253 has 32 divisors (see below), whose sum is σ = 1159065600. Its totient is φ = 504838656.

The previous prime is 812525227. The next prime is 812525267. The reversal of 812525253 is 352525218.

It is not a de Polignac number, because 812525253 - 2⁸ = 812524997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812525293) 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, 1232638 + ... + 1233296.

It is an arithmetic number, because the mean of its divisors is an integer number (36220800).

Almost surely, 2^812525253 is an apocalyptic number.

It is an amenable number.

812525253 is a deficient number, since it is larger than the sum of its proper divisors (346540347).

812525253 is a wasteful number, since it uses less digits than its factorization.

812525253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001.

The product of its digits is 24000, while the sum is 33.

The square root of 812525253 is about 28504.8285909598. The cubic root of 812525253 is about 933.1374564995.

The spelling of 812525253 in words is "eight hundred twelve million, five hundred twenty-five thousand, two hundred fifty-three".