1025144650 has 24 divisors (see below), whose sum is σ = 1938033324. Its totient is φ = 403334400.

The previous prime is 1025144641. The next prime is 1025144651. The reversal of 1025144650 is 564415201.

It can be written as a sum of positive squares in 6 ways, for example, as 27279729 + 997864921 = 5223^2 + 31589^2 .

It is a super-4 number, since 4×1025144650⁴ (a number of 37 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (1025144651) 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, 165007 + ... + 171106.

Almost surely, 2^1025144650 is an apocalyptic number.

1025144650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1025144650 is a deficient number, since it is larger than the sum of its proper divisors (912888674).

1025144650 is a wasteful number, since it uses less digits than its factorization.

1025144650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336186 (or 336181 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 1025144650 is about 32017.8801609351. The cubic root of 1025144650 is about 1008.3122648119.

Adding to 1025144650 its reverse (564415201), we get a palindrome (1589559851).

The spelling of 1025144650 in words is "one billion, twenty-five million, one hundred forty-four thousand, six hundred fifty".