260252521 has 4 divisors (see below), whose sum is σ = 271567872. Its totient is φ = 248937172.

The previous prime is 260252513. The next prime is 260252527. The reversal of 260252521 is 125252062.

It is a happy number.

260252521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 260252521 - 2³ = 260252513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260252527) 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, 5657641 + ... + 5657686.

It is an arithmetic number, because the mean of its divisors is an integer number (67891968).

Almost surely, 2^260252521 is an apocalyptic number.

It is an amenable number.

260252521 is a deficient number, since it is larger than the sum of its proper divisors (11315351).

260252521 is a wasteful number, since it uses less digits than its factorization.

260252521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11315350.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 260252521 is about 16132.3439400479. The cubic root of 260252521 is about 638.4569933302.

The spelling of 260252521 in words is "two hundred sixty million, two hundred fifty-two thousand, five hundred twenty-one".