3551554 has 4 divisors (see below), whose sum is σ = 5327334. Its totient is φ = 1775776.

The previous prime is 3551551. The next prime is 3551563. The reversal of 3551554 is 4551553.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4551553 = 127 ⋅35839.

It can be written as a sum of positive squares in only one way, i.e., 2175625 + 1375929 = 1475^2 + 1173^2 .

It is a super-2 number, since 2×3551554² = 25227071629832, which contains 22 as substring.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (3551551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 887887 + ... + 887890.

Almost surely, 2^3551554 is an apocalyptic number.

3551554 is a deficient number, since it is larger than the sum of its proper divisors (1775780).

3551554 is a wasteful number, since it uses less digits than its factorization.

3551554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1775779.

The product of its digits is 7500, while the sum is 28.

The square root of 3551554 is about 1884.5567118025. The cubic root of 3551554 is about 152.5712862098.

Subtracting 3551554 from its reverse (4551553), we obtain a palindrome (999999).

The spelling of 3551554 in words is "three million, five hundred fifty-one thousand, five hundred fifty-four".