801048551 has 4 divisors (see below), whose sum is σ = 848169072. Its totient is φ = 753928032.

The previous prime is 801048541. The next prime is 801048553. The reversal of 801048551 is 155840108.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-801048551 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 (801048553) 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, 23560235 + ... + 23560268.

It is an arithmetic number, because the mean of its divisors is an integer number (212042268).

Almost surely, 2^801048551 is an apocalyptic number.

801048551 is a deficient number, since it is larger than the sum of its proper divisors (47120521).

801048551 is a wasteful number, since it uses less digits than its factorization.

801048551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47120520.

The product of its (nonzero) digits is 6400, while the sum is 32.

The square root of 801048551 is about 28302.8011157906. The cubic root of 801048551 is about 928.7231682068.

Adding to 801048551 its reverse (155840108), we get a palindrome (956888659).

The spelling of 801048551 in words is "eight hundred one million, forty-eight thousand, five hundred fifty-one".