872010454225 has 9 divisors (see below), whose sum is σ = 1081298752923. Its totient is φ = 697604628120.

The previous prime is 872010454111. The next prime is 872010454277. The reversal of 872010454225 is 522454010278.

It is a happy number.

The square root of 872010454225 is 933815.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 313923763521 + 558086690704 = 560289^2 + 747052^2 .

It is a de Polignac number, because none of the positive numbers 2^k-872010454225 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4575694 + ... + 4762456.

Almost surely, 2^872010454225 is an apocalyptic number.

872010454225 is the 933815-th square number.

872010454225 is the 466908-th centered octagonal number.

It is an amenable number.

872010454225 is a deficient number, since it is larger than the sum of its proper divisors (209288298698).

872010454225 is an frugal number, since it uses more digits than its factorization.

872010454225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373536 (or 186768 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 40.

The spelling of 872010454225 in words is "eight hundred seventy-two billion, ten million, four hundred fifty-four thousand, two hundred twenty-five".