1625173612125 has 64 divisors (see below), whose sum is σ = 3129737994240. Its totient is φ = 733532155200.

The previous prime is 1625173612121. The next prime is 1625173612129. The reversal of 1625173612125 is 5212163715261.

It is an interprime number because it is at equal distance from previous prime (1625173612121) and next prime (1625173612129).

It is not a de Polignac number, because 1625173612125 - 2² = 1625173612121 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1625173612121) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3711067 + ... + 4125816.

It is an arithmetic number, because the mean of its divisors is an integer number (48902156160).

Almost surely, 2^{1625173612125} is an apocalyptic number.

1625173612125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1625173612125 is a deficient number, since it is larger than the sum of its proper divisors (1504564382115).

1625173612125 is an equidigital number, since it uses as much as digits as its factorization.

1625173612125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7836987 (or 7836977 counting only the distinct ones).

The product of its digits is 151200, while the sum is 42.

The spelling of 1625173612125 in words is "one trillion, six hundred twenty-five billion, one hundred seventy-three million, six hundred twelve thousand, one hundred twenty-five".