2625538961 has 8 divisors (see below), whose sum is σ = 2635551360. Its totient is φ = 2615542272.

The previous prime is 2625538901. The next prime is 2625538967. The reversal of 2625538961 is 1698355262.

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

It is a cyclic number.

It is not a de Polignac number, because 2625538961 - 2⁶ = 2625538897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2625538967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 410756 + ... + 417098.

It is an arithmetic number, because the mean of its divisors is an integer number (329443920).

Almost surely, 2^2625538961 is an apocalyptic number.

It is an amenable number.

2625538961 is a deficient number, since it is larger than the sum of its proper divisors (10012399).

2625538961 is a wasteful number, since it uses less digits than its factorization.

2625538961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7855.

The product of its digits is 777600, while the sum is 47.

The square root of 2625538961 is about 51240.0132806384. The cubic root of 2625538961 is about 1379.5564914146.

The spelling of 2625538961 in words is "two billion, six hundred twenty-five million, five hundred thirty-eight thousand, nine hundred sixty-one".