1325251233550 has 24 divisors (see below), whose sum is σ = 2572139787696. Its totient is φ = 507052645440.

The previous prime is 1325251233533. The next prime is 1325251233563. The reversal of 1325251233550 is 553321525231.

It is a congruent number.

It is an unprimeable number.

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, 576195039 + ... + 576197338.

It is an arithmetic number, because the mean of its divisors is an integer number (107172491154).

Almost surely, 2^{1325251233550} is an apocalyptic number.

1325251233550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1325251233550 is a deficient number, since it is larger than the sum of its proper divisors (1246888554146).

1325251233550 is a wasteful number, since it uses less digits than its factorization.

1325251233550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152392412 (or 1152392407 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 37.

Adding to 1325251233550 its reverse (553321525231), we get a palindrome (1878572758781).

The spelling of 1325251233550 in words is "one trillion, three hundred twenty-five billion, two hundred fifty-one million, two hundred thirty-three thousand, five hundred fifty".