3553121425 has 12 divisors (see below), whose sum is σ = 5035280896. Its totient is φ = 2436426000.

The previous prime is 3553121417. The next prime is 3553121447. The reversal of 3553121425 is 5241213553.

It is not a de Polignac number, because 3553121425 - 2³ = 3553121417 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10151601 + ... + 10151950.

Almost surely, 2^3553121425 is an apocalyptic number.

3553121425 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3553121425 is a deficient number, since it is larger than the sum of its proper divisors (1482159471).

3553121425 is a wasteful number, since it uses less digits than its factorization.

3553121425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20303568 (or 20303563 counting only the distinct ones).

The product of its digits is 18000, while the sum is 31.

The square root of 3553121425 is about 59608.0651002866. The cubic root of 3553121425 is about 1525.9372792366.

Adding to 3553121425 its reverse (5241213553), we get a palindrome (8794334978).

The spelling of 3553121425 in words is "three billion, five hundred fifty-three million, one hundred twenty-one thousand, four hundred twenty-five".