1706197626225 has 45 divisors (see below), whose sum is σ = 3160576684507. Its totient is φ = 909940718160.

The previous prime is 1706197626223. The next prime is 1706197626241. The reversal of 1706197626225 is 5226267916071.

It is a happy number.

The square root of 1706197626225 is 1306215.

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

1706197626225 is a `hidden beast` number, since 1 + 7 + 0 + 6 + 1 + 9 + 7 + 6 + 2 + 622 + 5 = 666.

It can be written as a sum of positive squares in only one way, i.e., 614231145441 + 1091966480784 = 783729^2 + 1044972^2 .

It is a tau number, because it is divible by the number of its divisors (45).

It is not a de Polignac number, because 1706197626225 - 2¹ = 1706197626223 is a prime.

It is a super-2 number, since 2×1706197626225² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1706197626223) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 58765162 + ... + 58794188.

Almost surely, 2^{1706197626225} is an apocalyptic number.

1706197626225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1706197626225 is the 1306215-th square number.

1706197626225 is the 653108-th centered octagonal number.

It is an amenable number.

1706197626225 is a deficient number, since it is larger than the sum of its proper divisors (1454379058282).

1706197626225 is an frugal number, since it uses more digits than its factorization.

1706197626225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58076 (or 29035 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 1706197626225 in words is "one trillion, seven hundred six billion, one hundred ninety-seven million, six hundred twenty-six thousand, two hundred twenty-five".