1625026056643 has 4 divisors (see below), whose sum is σ = 1772755698168. Its totient is φ = 1477296415120.

The previous prime is 1625026056617. The next prime is 1625026056673. The reversal of 1625026056643 is 3466506205261.

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

It is a cyclic number.

It is not a de Polignac number, because 1625026056643 - 2²¹ = 1625023959491 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1625026056593 and 1625026056602.

It is not an unprimeable number, because it can be changed into a prime (1625026056613) 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, 73864820746 + ... + 73864820767.

It is an arithmetic number, because the mean of its divisors is an integer number (443188924542).

Almost surely, 2^{1625026056643} is an apocalyptic number.

1625026056643 is a deficient number, since it is larger than the sum of its proper divisors (147729641525).

1625026056643 is a wasteful number, since it uses less digits than its factorization.

1625026056643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147729641524.

The product of its (nonzero) digits is 1555200, while the sum is 46.

The spelling of 1625026056643 in words is "one trillion, six hundred twenty-five billion, twenty-six million, fifty-six thousand, six hundred forty-three".