1625245634247 has 4 divisors (see below), whose sum is σ = 2166994179000. Its totient is φ = 1083497089496.

The previous prime is 1625245634231. The next prime is 1625245634263. The reversal of 1625245634247 is 7424365425261.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1625245634231) and next prime (1625245634263).

It is a cyclic number.

It is not a de Polignac number, because 1625245634247 - 2⁴ = 1625245634231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1625245634247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1625245634227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270874272372 + ... + 270874272377.

It is an arithmetic number, because the mean of its divisors is an integer number (541748544750).

Almost surely, 2^{1625245634247} is an apocalyptic number.

1625245634247 is a deficient number, since it is larger than the sum of its proper divisors (541748544753).

1625245634247 is an equidigital number, since it uses as much as digits as its factorization.

1625245634247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541748544752.

The product of its digits is 9676800, while the sum is 51.

The spelling of 1625245634247 in words is "one trillion, six hundred twenty-five billion, two hundred forty-five million, six hundred thirty-four thousand, two hundred forty-seven".