7743120025 has 9 divisors (see below), whose sum is σ = 9602014431. Its totient is φ = 6194144040.

The previous prime is 7743120019. The next prime is 7743120029. The reversal of 7743120025 is 5200213477.

The square root of 7743120025 is 87995.

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., 2787523209 + 4955596816 = 52797^2 + 70396^2 .

It is not a de Polignac number, because 7743120025 - 2²¹ = 7741022873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7743120029) 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, 431176 + ... + 448774.

Almost surely, 2^7743120025 is an apocalyptic number.

7743120025 is the 87995-th square number.

7743120025 is the 43998-th centered octagonal number.

It is an amenable number.

7743120025 is a deficient number, since it is larger than the sum of its proper divisors (1858894406).

7743120025 is an frugal number, since it uses more digits than its factorization.

7743120025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35208 (or 17604 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The cubic root of 7743120025 is about 1978.3600358710.

The spelling of 7743120025 in words is "seven billion, seven hundred forty-three million, one hundred twenty thousand, twenty-five".