3551651 has 8 divisors (see below), whose sum is σ = 3775680. Its totient is φ = 3331368.

The previous prime is 3551641. The next prime is 3551663. The reversal of 3551651 is 1561553.

3551651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3551651 is a prime.

It is a super-2 number, since 2×3551651² = 25228449651602, which contains 22 as substring.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 3551651.

It is not an unprimeable number, because it can be changed into a prime (3551621) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1160 + ... + 2906.

It is an arithmetic number, because the mean of its divisors is an integer number (471960).

Almost surely, 2^3551651 is an apocalyptic number.

3551651 is a deficient number, since it is larger than the sum of its proper divisors (224029).

3551651 is a wasteful number, since it uses less digits than its factorization.

3551651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1873.

The product of its digits is 2250, while the sum is 26.

The square root of 3551651 is about 1884.5824471219. The cubic root of 3551651 is about 152.5726752055.

The spelling of 3551651 in words is "three million, five hundred fifty-one thousand, six hundred fifty-one".