2402763507225 has 81 divisors (see below), whose sum is σ = 4499867081437. Its totient is φ = 1225484800320.

The previous prime is 2402763507217. The next prime is 2402763507239. The reversal of 2402763507225 is 5227053672042.

The square root of 2402763507225 is 1550085.

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

2402763507225 is a `hidden beast` number, since 2 + 4 + 0 + 2 + 7 + 635 + 0 + 7 + 2 + 2 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 730045498329 + 1672718008896 = 854427^2 + 1293336^2 .

It is not a de Polignac number, because 2402763507225 - 2³ = 2402763507217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 534777079 + ... + 534781571.

Almost surely, 2^{2402763507225} is an apocalyptic number.

2402763507225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2402763507225 is the 1550085-th square number.

2402763507225 is the 775043-rd centered octagonal number.

It is an amenable number.

2402763507225 is a deficient number, since it is larger than the sum of its proper divisors (2097103574212).

2402763507225 is an frugal number, since it uses more digits than its factorization.

2402763507225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9048 (or 4524 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 45.

The spelling of 2402763507225 in words is "two trillion, four hundred two billion, seven hundred sixty-three million, five hundred seven thousand, two hundred twenty-five".