2521260069 has 8 divisors (see below), whose sum is σ = 3507840192. Its totient is φ = 1607760000.

The previous prime is 2521260061. The next prime is 2521260073. The reversal of 2521260069 is 9600621252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2521260069 - 2³ = 2521260061 is a prime.

It is a super-3 number, since 3×2521260069³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521260061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18269932 + ... + 18270069.

It is an arithmetic number, because the mean of its divisors is an integer number (438480024).

Almost surely, 2^2521260069 is an apocalyptic number.

It is an amenable number.

2521260069 is a deficient number, since it is larger than the sum of its proper divisors (986580123).

2521260069 is a wasteful number, since it uses less digits than its factorization.

2521260069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36540027.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 2521260069 is about 50212.1506111818. The cubic root of 2521260069 is about 1361.0452008872.

The spelling of 2521260069 in words is "two billion, five hundred twenty-one million, two hundred sixty thousand, sixty-nine".