5537491 has 4 divisors (see below), whose sum is σ = 5599800. Its totient is φ = 5475184.

The previous prime is 5537489. The next prime is 5537509. The reversal of 5537491 is 1947355.

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 5537491 - 2¹ = 5537489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5537401) 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, 31021 + ... + 31198.

It is an arithmetic number, because the mean of its divisors is an integer number (1399950).

Almost surely, 2^5537491 is an apocalyptic number.

5537491 is a deficient number, since it is larger than the sum of its proper divisors (62309).

5537491 is an equidigital number, since it uses as much as digits as its factorization.

5537491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62308.

The product of its digits is 18900, while the sum is 34.

The square root of 5537491 is about 2353.1874128509. The cubic root of 5537491 is about 176.9175885409.

The spelling of 5537491 in words is "five million, five hundred thirty-seven thousand, four hundred ninety-one".