1653023425 has 24 divisors (see below), whose sum is σ = 2071395200. Its totient is φ = 1308528000.

The previous prime is 1653023399. The next prime is 1653023431. The reversal of 1653023425 is 5243203561.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1653023425 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1180876 + ... + 1182274.

Almost surely, 2^1653023425 is an apocalyptic number.

It is an amenable number.

1653023425 is a deficient number, since it is larger than the sum of its proper divisors (418371775).

1653023425 is a wasteful number, since it uses less digits than its factorization.

1653023425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1873 (or 1868 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 1653023425 is about 40657.3907795372. The cubic root of 1653023425 is about 1182.3870631592.

Adding to 1653023425 its reverse (5243203561), we get a palindrome (6896226986).

The spelling of 1653023425 in words is "one billion, six hundred fifty-three million, twenty-three thousand, four hundred twenty-five".