1425631016225 has 24 divisors (see below), whose sum is σ = 1925156391480. Its totient is φ = 1040944734720.

The previous prime is 1425631016189. The next prime is 1425631016261. The reversal of 1425631016225 is 5226101365241.

It is an interprime number because it is at equal distance from previous prime (1425631016189) and next prime (1425631016261).

It can be written as a sum of positive squares in 12 ways, for example, as 646803586081 + 778827430144 = 804241^2 + 882512^2 .

It is not a de Polignac number, because 1425631016225 - 2¹² = 1425631012129 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24614654 + ... + 24672503.

It is an arithmetic number, because the mean of its divisors is an integer number (80214849645).

Almost surely, 2^{1425631016225} is an apocalyptic number.

It is an amenable number.

1425631016225 is a deficient number, since it is larger than the sum of its proper divisors (499525375255).

1425631016225 is a wasteful number, since it uses less digits than its factorization.

1425631016225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49287269 (or 49287264 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 1425631016225 in words is "one trillion, four hundred twenty-five billion, six hundred thirty-one million, sixteen thousand, two hundred twenty-five".