1650238425 has 72 divisors (see below), whose sum is σ = 3233736480. Its totient is φ = 797817600.

The previous prime is 1650238361. The next prime is 1650238451. The reversal of 1650238425 is 5248320561.

It is not a de Polignac number, because 1650238425 - 2⁶ = 1650238361 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1650238425.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1130346 + ... + 1131804.

Almost surely, 2^1650238425 is an apocalyptic number.

1650238425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1650238425 is a deficient number, since it is larger than the sum of its proper divisors (1583498055).

1650238425 is a wasteful number, since it uses less digits than its factorization.

1650238425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943 (or 1935 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 1650238425 is about 40623.1267260412. The cubic root of 1650238425 is about 1181.7226646265.

Adding to 1650238425 its reverse (5248320561), we get a palindrome (6898558986).

The spelling of 1650238425 in words is "one billion, six hundred fifty million, two hundred thirty-eight thousand, four hundred twenty-five".