5491851 has 4 divisors (see below), whose sum is σ = 7322472. Its totient is φ = 3661232.

The previous prime is 5491847. The next prime is 5491859. The reversal of 5491851 is 1581945.

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 5491851 - 2² = 5491847 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (5491859) 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, 915306 + ... + 915311.

It is an arithmetic number, because the mean of its divisors is an integer number (1830618).

Almost surely, 2^5491851 is an apocalyptic number.

5491851 is a deficient number, since it is larger than the sum of its proper divisors (1830621).

5491851 is a wasteful number, since it uses less digits than its factorization.

5491851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830620.

The product of its digits is 7200, while the sum is 33.

The square root of 5491851 is about 2343.4698632583. The cubic root of 5491851 is about 176.4301954675.

The spelling of 5491851 in words is "five million, four hundred ninety-one thousand, eight hundred fifty-one".