1625023603 has 12 divisors (see below), whose sum is σ = 1891381752. Its totient is φ = 1392105120.

The previous prime is 1625023579. The next prime is 1625023661. The reversal of 1625023603 is 3063205261.

It is not a de Polignac number, because 1625023603 - 2²¹ = 1622926451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1625023403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91143 + ... + 107503.

It is an arithmetic number, because the mean of its divisors is an integer number (157615146).

Almost surely, 2^1625023603 is an apocalyptic number.

1625023603 is a deficient number, since it is larger than the sum of its proper divisors (266358149).

1625023603 is a wasteful number, since it uses less digits than its factorization.

1625023603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18402 (or 18395 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 1625023603 is about 40311.5814996137. The cubic root of 1625023603 is about 1175.6730359921.

Adding to 1625023603 its reverse (3063205261), we get a palindrome (4688228864).

The spelling of 1625023603 in words is "one billion, six hundred twenty-five million, twenty-three thousand, six hundred three".