812525 has 12 divisors (see below), whose sum is σ = 1151712. Its totient is φ = 557040.

The previous prime is 812519. The next prime is 812527. The reversal of 812525 is 525218.

It is not a de Polignac number, because 812525 - 2¹⁰ = 811501 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 812525.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 812525.

It is not an unprimeable number, because it can be changed into a prime (812527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2147 + ... + 2496.

It is an arithmetic number, because the mean of its divisors is an integer number (95976).

2⁸¹²⁵²⁵ is an apocalyptic number.

It is an amenable number.

812525 is a deficient number, since it is larger than the sum of its proper divisors (339187).

812525 is a wasteful number, since it uses less digits than its factorization.

812525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4660 (or 4655 counting only the distinct ones).

The product of its digits is 800, while the sum is 23.

The square root of 812525 is about 901.4016862642. The cubic root of 812525 is about 93.3137359648.

The spelling of 812525 in words is "eight hundred twelve thousand, five hundred twenty-five".