5491251 has 12 divisors (see below), whose sum is σ = 7954128. Its totient is φ = 3650544.

The previous prime is 5491231. The next prime is 5491259. The reversal of 5491251 is 1521945.

It is not a de Polignac number, because 5491251 - 2⁵ = 5491219 is a prime.

5491251 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5491259) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3921 + ... + 5133.

It is an arithmetic number, because the mean of its divisors is an integer number (662844).

Almost surely, 2^5491251 is an apocalyptic number.

5491251 is a deficient number, since it is larger than the sum of its proper divisors (2462877).

5491251 is a wasteful number, since it uses less digits than its factorization.

5491251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722 (or 1719 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 5491251 is about 2343.3418444606. The cubic root of 5491251 is about 176.4237700703.

The spelling of 5491251 in words is "five million, four hundred ninety-one thousand, two hundred fifty-one".