1012508875225 has 9 divisors (see below), whose sum is σ = 1255517243967. Its totient is φ = 810003075240.

The previous prime is 1012508875201. The next prime is 1012508875277. The reversal of 1012508875225 is 5225788052101.

The square root of 1012508875225 is 1006235.

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., 364503195081 + 648005680144 = 603741^2 + 804988^2 .

It is not a de Polignac number, because 1012508875225 - 2²³ = 1012500486617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4930552 + ... + 5131798.

Almost surely, 2^{1012508875225} is an apocalyptic number.

1012508875225 is the 1006235-th square number.

1012508875225 is the 503118-th centered octagonal number.

It is an amenable number.

1012508875225 is a deficient number, since it is larger than the sum of its proper divisors (243008368742).

1012508875225 is an frugal number, since it uses more digits than its factorization.

1012508875225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402504 (or 201252 counting only the distinct ones).

The product of its (nonzero) digits is 448000, while the sum is 46.

The spelling of 1012508875225 in words is "one trillion, twelve billion, five hundred eight million, eight hundred seventy-five thousand, two hundred twenty-five".