5640061 has 4 divisors (see below), whose sum is σ = 6445792. Its totient is φ = 4834332.

The previous prime is 5640059. The next prime is 5640067. The reversal of 5640061 is 1600465.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5640061 - 2¹ = 5640059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5640067) 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, 402855 + ... + 402868.

It is an arithmetic number, because the mean of its divisors is an integer number (1611448).

Almost surely, 2^5640061 is an apocalyptic number.

It is an amenable number.

5640061 is a deficient number, since it is larger than the sum of its proper divisors (805731).

5640061 is an equidigital number, since it uses as much as digits as its factorization.

5640061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805730.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 5640061 is about 2374.8812601897. The cubic root of 5640061 is about 178.0032507928.

The spelling of 5640061 in words is "five million, six hundred forty thousand, sixty-one".