1623203225 has 48 divisors (see below), whose sum is σ = 2391811200. Its totient is φ = 1069178880.

The previous prime is 1623203213. The next prime is 1623203279. The reversal of 1623203225 is 5223023261.

It is not a de Polignac number, because 1623203225 - 2¹² = 1623199129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1623203194 and 1623203203.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1151321 + ... + 1152729.

It is an arithmetic number, because the mean of its divisors is an integer number (49829400).

Almost surely, 2^1623203225 is an apocalyptic number.

It is an amenable number.

1623203225 is a deficient number, since it is larger than the sum of its proper divisors (768607975).

1623203225 is a wasteful number, since it uses less digits than its factorization.

1623203225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682 (or 1677 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 1623203225 is about 40288.9963265406. The cubic root of 1623203225 is about 1175.2338692471.

Adding to 1623203225 its reverse (5223023261), we get a palindrome (6846226486).

The spelling of 1623203225 in words is "one billion, six hundred twenty-three million, two hundred three thousand, two hundred twenty-five".