1625207506625 has 8 divisors (see below), whose sum is σ = 2028258968424. Its totient is φ = 1300166005200.

The previous prime is 1625207506583. The next prime is 1625207506651. The reversal of 1625207506625 is 5266057025261.

It can be written as a sum of positive squares in 4 ways, for example, as 12101760064 + 1613105746561 = 110008^2 + 1270081^2 .

It is not a de Polignac number, because 1625207506625 - 2⁶ = 1625207506561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1625207506625.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6500829902 + ... + 6500830151.

It is an arithmetic number, because the mean of its divisors is an integer number (253532371053).

Almost surely, 2^{1625207506625} is an apocalyptic number.

It is an amenable number.

1625207506625 is a deficient number, since it is larger than the sum of its proper divisors (403051461799).

1625207506625 is an equidigital number, since it uses as much as digits as its factorization.

1625207506625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13001660068 (or 13001660058 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 47.

The spelling of 1625207506625 in words is "one trillion, six hundred twenty-five billion, two hundred seven million, five hundred six thousand, six hundred twenty-five".