5645261 has 8 divisors (see below), whose sum is σ = 6019200. Its totient is φ = 5279040.

The previous prime is 5645257. The next prime is 5645273. The reversal of 5645261 is 1625465.

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 5645261 - 2² = 5645257 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5645251) 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, 380 + ... + 3381.

It is an arithmetic number, because the mean of its divisors is an integer number (752400).

Almost surely, 2^5645261 is an apocalyptic number.

It is an amenable number.

5645261 is a deficient number, since it is larger than the sum of its proper divisors (373939).

5645261 is a wasteful number, since it uses less digits than its factorization.

5645261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3859.

The product of its digits is 7200, while the sum is 29.

The square root of 5645261 is about 2375.9757995401. The cubic root of 5645261 is about 178.0579388883.

The spelling of 5645261 in words is "five million, six hundred forty-five thousand, two hundred sixty-one".