3557321025 has 24 divisors (see below), whose sum is σ = 5962014240. Its totient is φ = 1871245440.

The previous prime is 3557320997. The next prime is 3557321041. The reversal of 3557321025 is 5201237553.

It is not a de Polignac number, because 3557321025 - 2⁵ = 3557320993 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 319395 + ... + 330344.

It is an arithmetic number, because the mean of its divisors is an integer number (248417260).

Almost surely, 2^3557321025 is an apocalyptic number.

It is an amenable number.

3557321025 is a deficient number, since it is larger than the sum of its proper divisors (2404693215).

3557321025 is a wasteful number, since it uses less digits than its factorization.

3557321025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649825 (or 649820 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 33.

The square root of 3557321025 is about 59643.2814741107. The cubic root of 3557321025 is about 1526.5382346897.

Adding to 3557321025 its reverse (5201237553), we get a palindrome (8758558578).

The spelling of 3557321025 in words is "three billion, five hundred fifty-seven million, three hundred twenty-one thousand, twenty-five".