3551622447 has 4 divisors (see below), whose sum is σ = 4735496600. Its totient is φ = 2367748296.

The previous prime is 3551622433. The next prime is 3551622449. The reversal of 3551622447 is 7442261553.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3551622447 - 2⁶ = 3551622383 is a prime.

It is a super-2 number, since 2×3551622447² = 25228044012068535618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3551622449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 591937072 + ... + 591937077.

It is an arithmetic number, because the mean of its divisors is an integer number (1183874150).

Almost surely, 2^3551622447 is an apocalyptic number.

3551622447 is a deficient number, since it is larger than the sum of its proper divisors (1183874153).

3551622447 is a wasteful number, since it uses less digits than its factorization.

3551622447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183874152.

The product of its digits is 201600, while the sum is 39.

The square root of 3551622447 is about 59595.4901565546. The cubic root of 3551622447 is about 1525.7226634222.

The spelling of 3551622447 in words is "three billion, five hundred fifty-one million, six hundred twenty-two thousand, four hundred forty-seven".