1097895318025 has 27 divisors (see below), whose sum is σ = 1496482649319. Its totient is φ = 798427410000.

The previous prime is 1097895318019. The next prime is 1097895318073. The reversal of 1097895318025 is 5208135987901.

It is a happy number.

The square root of 1097895318025 is 1047805.

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., 395242314489 + 702653003536 = 628683^2 + 838244^2 .

It is not a de Polignac number, because 1097895318025 - 2³ = 1097895318017 is a prime.

It is a Duffinian number.

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, 57619750 + ... + 57638800.

Almost surely, 2^{1097895318025} is an apocalyptic number.

1097895318025 is the 1047805-th square number.

1097895318025 is the 523903-rd centered octagonal number.

It is an amenable number.

1097895318025 is a deficient number, since it is larger than the sum of its proper divisors (398587331294).

1097895318025 is an frugal number, since it uses more digits than its factorization.

1097895318025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38134 (or 19067 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 58.

The spelling of 1097895318025 in words is "one trillion, ninety-seven billion, eight hundred ninety-five million, three hundred eighteen thousand, twenty-five".