1626912225 has 27 divisors (see below), whose sum is σ = 2915064633. Its totient is φ = 867363840.

The previous prime is 1626912211. The next prime is 1626912233. The reversal of 1626912225 is 5222196261.

The square root of 1626912225 is 40335.

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

1626912225 is a `hidden beast` number, since 1 + 626 + 9 + 1 + 2 + 2 + 25 = 666.

1626912225 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 733380561 + 893531664 = 27081^2 + 29892^2 .

It is not a de Polignac number, because 1626912225 - 2¹¹ = 1626910177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1626912225.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 603681 + ... + 606369.

Almost surely, 2^1626912225 is an apocalyptic number.

1626912225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1626912225 is the 40335-th square number.

1626912225 is the 20168-th centered octagonal number.

It is an amenable number.

1626912225 is a deficient number, since it is larger than the sum of its proper divisors (1288152408).

1626912225 is an frugal number, since it uses more digits than its factorization.

1626912225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5394 (or 2697 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The cubic root of 1626912225 is about 1176.1283201120.

Multiplying 1626912225 by its sum of digits (36), we get a square (58568840100 = 242010²).

The spelling of 1626912225 in words is "one billion, six hundred twenty-six million, nine hundred twelve thousand, two hundred twenty-five".