3545551 has 4 divisors (see below), whose sum is σ = 3553704. Its totient is φ = 3537400.

The previous prime is 3545497. The next prime is 3545567. The reversal of 3545551 is 1555453.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1555453 = 89 ⋅17477.

It is a cyclic number.

It is not a de Polignac number, because 3545551 - 2¹¹ = 3543503 is a prime.

It is a Duffinian number.

3545551 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3545051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3385 + ... + 4306.

It is an arithmetic number, because the mean of its divisors is an integer number (888426).

Almost surely, 2^3545551 is an apocalyptic number.

3545551 is a deficient number, since it is larger than the sum of its proper divisors (8153).

3545551 is an equidigital number, since it uses as much as digits as its factorization.

3545551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8152.

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

The square root of 3545551 is about 1882.9633559897. The cubic root of 3545551 is about 152.4852767296.

It can be divided in two parts, 3545 and 551, that added together give a 12-th power (4096 = 2¹²).

The spelling of 3545551 in words is "three million, five hundred forty-five thousand, five hundred fifty-one".