3551115604 has 6 divisors (see below), whose sum is σ = 6214452314. Its totient is φ = 1775557800.

The previous prime is 3551115577. The next prime is 3551115611. The reversal of 3551115604 is 4065111553.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3540488004 + 10627600 = 59502^2 + 3260^2 .

It is a super-2 number, since 2×3551115604² = 25220844065944569632, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 443889447 + ... + 443889454.

Almost surely, 2^3551115604 is an apocalyptic number.

It is an amenable number.

3551115604 is a deficient number, since it is larger than the sum of its proper divisors (2663336710).

3551115604 is a wasteful number, since it uses less digits than its factorization.

3551115604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887778905 (or 887778903 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 3551115604 is about 59591.2376444725. The cubic root of 3551115604 is about 1525.6500826367.

It can be divided in two parts, 35511 and 15604, that added together give a palindrome (51115).

The spelling of 3551115604 in words is "three billion, five hundred fifty-one million, one hundred fifteen thousand, six hundred four".