1471575217225 has 9 divisors (see below), whose sum is σ = 1824760790517. Its totient is φ = 1177255321440.

The previous prime is 1471575217223. The next prime is 1471575217247. The reversal of 1471575217225 is 5227125751741.

The square root of 1471575217225 is 1213085.

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

It can be written as a sum of positive squares in 4 ways, for example, as 745868867769 + 725706349456 = 863637^2 + 851884^2 .

It is not a de Polignac number, because 1471575217225 - 2¹ = 1471575217223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1471575217223) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5944117 + ... + 6186733.

Almost surely, 2^{1471575217225} is an apocalyptic number.

1471575217225 is the 1213085-th square number.

1471575217225 is the 606543-rd centered octagonal number.

It is an amenable number.

1471575217225 is a deficient number, since it is larger than the sum of its proper divisors (353185573292).

1471575217225 is an frugal number, since it uses more digits than its factorization.

1471575217225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485244 (or 242622 counting only the distinct ones).

The product of its digits is 1372000, while the sum is 49.

Multiplying 1471575217225 by its sum of digits (49), we get a square (72107185644025 = 8491595²).

The spelling of 1471575217225 in words is "one trillion, four hundred seventy-one billion, five hundred seventy-five million, two hundred seventeen thousand, two hundred twenty-five".