4451155049 has 4 divisors (see below), whose sum is σ = 4855805520. Its totient is φ = 4046504580.

The previous prime is 4451155039. The next prime is 4451155081. The reversal of 4451155049 is 9405511544.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4451155049 - 2³² = 156187753 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4451155039) 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, 202325219 + ... + 202325240.

It is an arithmetic number, because the mean of its divisors is an integer number (1213951380).

Almost surely, 2^4451155049 is an apocalyptic number.

It is an amenable number.

4451155049 is a deficient number, since it is larger than the sum of its proper divisors (404650471).

4451155049 is a wasteful number, since it uses less digits than its factorization.

4451155049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404650470.

The product of its (nonzero) digits is 72000, while the sum is 38.

The square root of 4451155049 is about 66716.9772171971. The cubic root of 4451155049 is about 1644.9684554638.

The spelling of 4451155049 in words is "four billion, four hundred fifty-one million, one hundred fifty-five thousand, forty-nine".