5537281 has 8 divisors (see below), whose sum is σ = 5681664. Its totient is φ = 5394480.

The previous prime is 5537267. The next prime is 5537297. The reversal of 5537281 is 1827355.

5537281 = 174² + 175² + ... + 279².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5537281 - 2⁵ = 5537249 is a prime.

It is a super-2 number, since 2×5537281² = 61322961745922, which contains 22 as substring.

It is a Duffinian number.

5537281 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5537201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9850 + ... + 10396.

It is an arithmetic number, because the mean of its divisors is an integer number (710208).

Almost surely, 2^5537281 is an apocalyptic number.

It is an amenable number.

5537281 is a deficient number, since it is larger than the sum of its proper divisors (144383).

5537281 is a wasteful number, since it uses less digits than its factorization.

5537281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791.

The product of its digits is 8400, while the sum is 31.

The square root of 5537281 is about 2353.1427920974. The cubic root of 5537281 is about 176.9153520790.

The spelling of 5537281 in words is "five million, five hundred thirty-seven thousand, two hundred eighty-one".