4012205551 has 4 divisors (see below), whose sum is σ = 4012366032. Its totient is φ = 4012045072.

The previous prime is 4012205543. The next prime is 4012205573. The reversal of 4012205551 is 1555022104.

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

It is a cyclic number.

It is not a de Polignac number, because 4012205551 - 2³ = 4012205543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4012205501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33766 + ... + 95731.

It is an arithmetic number, because the mean of its divisors is an integer number (1003091508).

Almost surely, 2^4012205551 is an apocalyptic number.

4012205551 is a deficient number, since it is larger than the sum of its proper divisors (160481).

4012205551 is a wasteful number, since it uses less digits than its factorization.

4012205551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160480.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 4012205551 is about 63341.9730589441. The cubic root of 4012205551 is about 1589.0140045392.

Adding to 4012205551 its reverse (1555022104), we get a palindrome (5567227655).

The spelling of 4012205551 in words is "four billion, twelve million, two hundred five thousand, five hundred fifty-one".