2625013891 has 4 divisors (see below), whose sum is σ = 2625303384. Its totient is φ = 2624724400.

The previous prime is 2625013879. The next prime is 2625013901. The reversal of 2625013891 is 1983105262.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2625013891 - 2¹⁵ = 2624981123 is a prime.

It is a super-3 number, since 3×2625013891³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2625013891.

It is not an unprimeable number, because it can be changed into a prime (2625013871) 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, 130690 + ... + 149431.

It is an arithmetic number, because the mean of its divisors is an integer number (656325846).

Almost surely, 2^2625013891 is an apocalyptic number.

2625013891 is a deficient number, since it is larger than the sum of its proper divisors (289493).

2625013891 is an equidigital number, since it uses as much as digits as its factorization.

2625013891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289492.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 2625013891 is about 51234.8893918978. The cubic root of 2625013891 is about 1379.4645214698.

The spelling of 2625013891 in words is "two billion, six hundred twenty-five million, thirteen thousand, eight hundred ninety-one".