2625294481 has 4 divisors (see below), whose sum is σ = 2632043700. Its totient is φ = 2618545264.

The previous prime is 2625294461. The next prime is 2625294521. The reversal of 2625294481 is 1844925262.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1844925262 = 2 ⋅922462631.

It can be written as a sum of positive squares in 2 ways, for example, as 276922881 + 2348371600 = 16641^2 + 48460^2 .

It is a cyclic number.

It is not a de Polignac number, because 2625294481 - 2²¹ = 2623197329 is a prime.

It is a super-2 number, since 2×2625294481² = 13784342223938118722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2625294431) 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, 3374026 + ... + 3374803.

It is an arithmetic number, because the mean of its divisors is an integer number (658010925).

Almost surely, 2^2625294481 is an apocalyptic number.

It is an amenable number.

2625294481 is a deficient number, since it is larger than the sum of its proper divisors (6749219).

2625294481 is an equidigital number, since it uses as much as digits as its factorization.

2625294481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6749218.

The product of its digits is 276480, while the sum is 43.

The square root of 2625294481 is about 51237.6275894972. The cubic root of 2625294481 is about 1379.5136704363.

The spelling of 2625294481 in words is "two billion, six hundred twenty-five million, two hundred ninety-four thousand, four hundred eighty-one".