5261601 has 4 divisors (see below), whose sum is σ = 7015472. Its totient is φ = 3507732.

The previous prime is 5261587. The next prime is 5261611. The reversal of 5261601 is 1061625.

It is a happy number.

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 not a de Polignac number, because 5261601 - 2⁵ = 5261569 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

5261601 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5261611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 876931 + ... + 876936.

It is an arithmetic number, because the mean of its divisors is an integer number (1753868).

Almost surely, 2^5261601 is an apocalyptic number.

It is an amenable number.

5261601 is a deficient number, since it is larger than the sum of its proper divisors (1753871).

5261601 is a wasteful number, since it uses less digits than its factorization.

5261601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753870.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 5261601 is about 2293.8179962674. The cubic root of 5261601 is about 173.9292551618.

The spelling of 5261601 in words is "five million, two hundred sixty-one thousand, six hundred one".