5265661 has 4 divisors (see below), whose sum is σ = 5273632. Its totient is φ = 5257692.

The previous prime is 5265653. The next prime is 5265683. The reversal of 5265661 is 1665625.

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 5265661 - 2³ = 5265653 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5265761) 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, 2895 + ... + 4348.

It is an arithmetic number, because the mean of its divisors is an integer number (1318408).

Almost surely, 2^5265661 is an apocalyptic number.

It is an amenable number.

5265661 is a deficient number, since it is larger than the sum of its proper divisors (7971).

5265661 is an equidigital number, since it uses as much as digits as its factorization.

5265661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7970.

The product of its digits is 10800, while the sum is 31.

The square root of 5265661 is about 2294.7028130022. The cubic root of 5265661 is about 173.9739799027.

The spelling of 5265661 in words is "five million, two hundred sixty-five thousand, six hundred sixty-one".