5691251 has 8 divisors (see below), whose sum is σ = 5881344. Its totient is φ = 5503680.

The previous prime is 5691247. The next prime is 5691253. The reversal of 5691251 is 1521965.

5691251 = 4² + 5² + ... + 257².

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 5691251 - 2² = 5691247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5691253) 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, 4661 + ... + 5753.

It is an arithmetic number, because the mean of its divisors is an integer number (735168).

Almost surely, 2^5691251 is an apocalyptic number.

5691251 is a deficient number, since it is larger than the sum of its proper divisors (190093).

5691251 is a wasteful number, since it uses less digits than its factorization.

5691251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261.

The product of its digits is 2700, while the sum is 29.

The square root of 5691251 is about 2385.6342972048. The cubic root of 5691251 is about 178.5401573584.

The spelling of 5691251 in words is "five million, six hundred ninety-one thousand, two hundred fifty-one".